ARCHIVE // MX // TIME-SERIES
Legislative branch
Mexico — 42 years of data
Historical Values
| Year | Value |
|---|---|
| 1990 | bicameral National Congress (Congreso de la Union) consists of an upper chamber or Senate (Camara de Senadores) and a lower chamber or Chamber of Deputies (Camara de Diputados) |
| 1991 | bicameral National Congress (Congreso de la Union) consists of an upper chamber or Senate (Camara de Senadores) and a lower chamber or Chamber of Deputies (Camara de Diputados) |
| 1992 | bicameral National Congress (Congreso de la Union) consists of an upper chamber or Senate (Camara de Senadores) and a lower chamber or Chamber of Deputies (Camara de Diputados) |
| 1993 | bicameral National Congress (Congreso de la Union) consists of an upper chamber or Senate (Camara de Senadores) and a lower chamber or Chamber of Deputies (Camara de Diputados) |
| 1994 | bicameral National Congress (Congreso de la Union) |
| 1994 | elections last held on 18 August 1991 (next to be held 21 August 1994); results - percent of vote by party NA; seats in full Senate - (64 total; Senate will expand to 128 seats following next election) PRI 62, PRD 1, PAN 1 |
| 1994 | elections last held on 18 August 1991 (next to be held 21 August 1994); results - PRI 53%, PAN 20%, PFCRN 10%, PPS 6%, PARM 7%, PMS (now part of PRD) 4%; seats - (500 total) PRI 320, PAN 89, PRD 41, PFCRN 23, PARM 15, PPS 12 |
| 1995 | bicameral National Congress (Congreso de la Union) |
| 1995 | elections last held on 21 August 1994 (next to be held NA); results - percent of vote by party NA; seats in full Senate - (128 total; Senate expanded from 64 seats at the last election) PRI 93, PRD 25, PAN 10 |
| 1995 | elections last held on 24 August 1994 (next to be held NA); results - percent of vote by party NA; seats - (500 total) PRI 300, PAN 119, PRD 71, PFCRN 10 |
| 1996 | bicameral National Congress (Congreso de la Union) |
| 1996 | elections last held 21 August 1994 (next to be held NA July 1997 for one-quarter of the seats); results - percent of vote by party NA; seats in full Senate - (128 total; Senate expanded from 64 seats at the last election) PRI 93, PRD 25, PAN 10 |
| 1996 | elections last held 24 August 1994 (next to be held NA July 1997); results - percent of vote by party NA; seats - (500 total) PRI 300, PAN 119, PRD 71, PT 10 |
| 1997 | bicameral National Congress or Congreso de la Union consists of the Senate or Camara de Senadores (128 seats, expanded from 64 seats at the last election; members are elected by popular vote to serve six-year terms) and the Chamber of Deputies or Camara de Diputados (500 seats; members are directly elected by popular vote to serve three-year terms) elections: Senate - last held 21 August 1994 (next to be held 6 July 1997 for one-quarter of the seats); Chamber of Deputies - last held 24 August 19 |
| 1998 | bicameral National Congress or Congreso de la Union consists of the Senate or Camara de Senadores (128 seats, expanded from 64 seats at the last election; half are elected by popular vote to serve six-year terms, and half are allocated or on basis of each party's popular vote) and the Chamber of Deputies or Camara de Diputados (500 seats; 300 members are directly elected by popular vote to serve three-year terms; remaining 200 seats are allocated on the basis of each party's popular vote, also f |
| 1999 | bicameral National Congress or Congreso de la Union consists of the Senate or Camara de Senadores (128 seats; half are elected by popular vote to serve six-year terms, and half are allocated on the basis of each party's popular vote) and the Chamber of Deputies or Camara de Diputados (500 seats; 300 members are directly elected by popular vote to serve three-year terms; remaining 200 members are allocated on the basis of each party's popular vote, also for three-year terms) elections: Senate--la |
| 2000 | bicameral National Congress or Congreso de la Union consists of the Senate or Camara de Senadores (128 seats; half are elected by popular vote to serve six-year terms, and half are allocated on the basis of each party's popular vote) and the Federal Chamber of Deputies or Camara Federal de Diputados (500 seats; 300 members are directly elected by popular vote to serve three-year terms; remaining 200 members are allocated on the basis of each party's popular vote, also for three-year terms) elect |
| 2001 | bicameral National Congress or Congreso de la Union consists of the Senate or Camara de Senadores (128 seats; 96 are elected by popular vote to serve six-year terms, and 32 are allocated on the basis of each party's popular vote) and the Federal Chamber of Deputies or Camara Federal de Diputados (500 seats; 300 members are directly elected by popular vote to serve three-year terms; remaining 200 members are allocated on the basis of each party's popular vote, also for three-year terms) elections |
| 2002 | bicameral National Congress or Congreso de la Union consists of the Senate or Camara de Senadores (128 seats; 96 are elected by popular vote to serve six-year terms, and 32 are allocated on the basis of each party's popular vote) and the Federal Chamber of Deputies or Camara Federal de Diputados (500 seats; 300 members are directly elected by popular vote to serve three-year terms; remaining 200 members are allocated on the basis of each party's popular vote, also for three-year terms) election |
| 2003 | bicameral National Congress or Congreso de la Union consists of the Senate or Camara de Senadores (128 seats; 96 are elected by popular vote to serve six-year terms, and 32 are allocated on the basis of each party's popular vote) and the Federal Chamber of Deputies or Camara Federal de Diputados (500 seats; 300 members are directly elected by popular vote to serve three-year terms; remaining 200 members are allocated on the basis of each party's popular vote, also for three-year terms) election |
| 2004 | bicameral National Congress or Congreso de la Union consists of the Senate or Camara de Senadores (128 seats; 96 are elected by popular vote to serve six-year terms, and 32 are allocated on the basis of each party's popular vote) and the Federal Chamber of Deputies or Camara Federal de Diputados (500 seats; 300 members are directly elected by popular vote to serve three-year terms; remaining 200 members are allocated on the basis of each party's popular vote, also for three-year terms) elections |
| 2005 | bicameral National Congress or Congreso de la Union consists of the Senate or Camara de Senadores (128 seats; 96 are elected by popular vote to serve six-year terms, and 32 are allocated on the basis of each party's popular vote) and the Federal Chamber of Deputies or Camara Federal de Diputados (500 seats; 300 members are directly elected by popular vote to serve three-year terms; remaining 200 members are allocated on the basis of each party's popular vote, also for three-year terms) elections |
| 2006 | bicameral National Congress or Congreso de la Union consists of the Senate or Camara de Senadores (128 seats; 96 are elected by popular vote to serve six-year terms, and 32 are allocated on the basis of each party's popular vote) and the Federal Chamber of Deputies or Camara Federal de Diputados (500 seats; 300 members are directly elected by popular vote to serve three-year terms; remaining 200 members are allocated on the basis of each party's popular vote, also for three-year terms) elections |
| 2007 | bicameral National Congress or Congreso de la Union consists of the Senate or Camara de Senadores (128 seats; 96 members are elected by popular vote to serve six-year terms, and 32 seats are allocated on the basis of each party's popular vote) and the Federal Chamber of Deputies or Camara Federal de Diputados (500 seats; 300 members are elected by popular vote; remaining 200 members are allocated on the basis of each party's popular vote; to serve three-year terms) elections: Senate - last held |
| 2008 | bicameral National Congress or Congreso de la Union consists of the Senate or Camara de Senadores (128 seats; 96 members are elected by popular vote to serve six-year terms, and 32 seats are allocated on the basis of each party's popular vote) and the Federal Chamber of Deputies or Camara Federal de Diputados (500 seats; 300 members are elected by popular vote; remaining 200 members are allocated on the basis of each party's popular vote; to serve three-year terms) elections: Senate - last held |
| 2009 | bicameral National Congress or Congreso de la Union consists of the Senate or Camara de Senadores (128 seats; 96 members are elected by popular vote to serve six-year terms, and 32 seats are allocated on the basis of each party's popular vote) and the Chamber of Deputies or Camara de Diputados (500 seats; 300 members are elected by popular vote; remaining 200 members are allocated on the basis of each party's popular vote; to serve three-year terms) elections: Senate - last held 2 July 2006 for |
| 2010 | bicameral National Congress or Congreso de la Union consists of the Senate or Camara de Senadores (128 seats; 96 members elected by popular vote to serve six-year terms, and 32 seats allocated on the basis of each party's popular vote) and the Chamber of Deputies or Camara de Diputados (500 seats; 300 members are elected by popular vote; remaining 200 members are allocated on the basis of each party's popular vote; members to serve three-year terms) elections: Senate - last held on 2 July 2006 f |
| 2011 | bicameral National Congress or Congreso de la Union consists of the Senate or Camara de Senadores (128 seats; 96 members elected by popular vote to serve six-year terms, and 32 seats allocated on the basis of each party's popular vote) and the Chamber of Deputies or Camara de Diputados (500 seats; 300 members are elected by popular vote; remaining 200 members are allocated on the basis of each party's popular vote; members to serve three-year terms) elections: Senate - last held on 2 July 2006 f |
| 2012 | bicameral National Congress or Congreso de la Union consists of the Senate or Camara de Senadores (128 seats; 96 members elected by popular vote to serve six-year terms, and 32 seats allocated on the basis of each party's popular vote) and the Chamber of Deputies or Camara de Diputados (500 seats; 300 members are elected by popular vote; remaining 200 members are allocated on the basis of each party's popular vote; members to serve three-year terms) elections: Senate - last held on 1 July 2012 f |
| 2013 | bicameral National Congress or Congreso de la Union consists of the Senate or Camara de Senadores (128 seats; 96 members elected by popular vote to serve six-year terms, and 32 seats allocated on the basis of each party's popular vote) and the Chamber of Deputies or Camara de Diputados (500 seats; 300 members are elected by popular vote; remaining 200 members are allocated on the basis of each party's popular vote; members to serve three-year terms) elections: Senate - last held on 1 July 2012 f |
| 2014 | bicameral National Congress or Congreso de la Union consists of the Senate or Camara de Senadores (128 seats; 96 members elected by popular vote to serve six-year terms, and 32 seats allocated on the basis of each party's popular vote) and the Chamber of Deputies or Camara de Diputados (500 seats; 300 members are elected by popular vote; remaining 200 members are allocated on the basis of each party's popular vote; members to serve three-year terms) elections: Senate - last held on 1 July 2012 f |
| 2015 | description: bicameral National Congress or Congreso de la Union consists of the Senate or Camara de Senadores (128 seats; 96 members directly elected in multi-seat constituencies by simple majority vote and 32 directly elected in a single, nationwide constituency by proportional representation vote; members serve 6-year terms) and the Chamber of Deputies or Camara de Diputados (500 seats; 300 members directly elected in single-seat constituencies by simple majority vote and 200 directly elected |
| 2016 | description: bicameral National Congress or Congreso de la Union consists of the Senate or Camara de Senadores (128 seats; 96 members directly elected in multi-seat constituencies by simple majority vote and 32 directly elected in a single, nationwide constituency by proportional representation vote; members serve 6-year terms) and the Chamber of Deputies or Camara de Diputados (500 seats; 300 members directly elected in single-seat constituencies by simple majority vote and 200 directly elected |
| 2017 | description: bicameral National Congress or Congreso de la Union consists of the Senate or Camara de Senadores (128 seats; 96 members directly elected in multi-seat constituencies by simple majority vote and 32 directly elected in a single, nationwide constituency by proportional representation vote; members serve 6-year terms) and the Chamber of Deputies or Camara de Diputados (500 seats; 300 members directly elected in single-seat constituencies by simple majority vote and 200 directly elected |
| 2018 | description: bicameral National Congress or Congreso de la Union consists of: Senate or Camara de Senadores (128 seats; 96 members directly elected in multi-seat constituencies by simple majority vote and 32 directly elected in a single, nationwide constituency by proportional representation vote; members serve 6-year terms) Chamber of Deputies or Camara de Diputados (500 seats; 300 members directly elected in single-seat constituencies by simple majority vote and 200 directly elected in a singl |
| 2019 | description: bicameral National Congress or Congreso de la Union consists of: Senate or Camara de Senadores (128 seats; 96 members directly elected in multi-seat constituencies by simple majority vote and 32 directly elected in a single, nationwide constituency by proportional representation vote; members serve 6-year terms) Chamber of Deputies or Camara de Diputados (500 seats; 300 members directly elected in single-seat constituencies by simple majority vote and 200 directly elected in a singl |
| 2020 | description: bicameral National Congress or Congreso de la Union consists of: Senate or Camara de Senadores (128 seats; 96 members directly elected in multi-seat constituencies by simple majority vote and 32 directly elected in a single, nationwide constituency by proportional representation vote; members serve 6-year terms) Chamber of Deputies or Camara de Diputados (500 seats; 300 members directly elected in single-seat constituencies by simple majority vote and 200 directly elected in a singl |
| 2021 | description: bicameral National Congress or Congreso de la Union consists of: Senate or Camara de Senadores (128 seats; 96 members directly elected in multi-seat constituencies by simple majority vote and 32 directly elected in a single, nationwide constituency by proportional representation vote; members serve 6-year terms) Chamber of Deputies or Camara de Diputados (500 seats; 300 members directly elected in single-seat constituencies by simple majority vote and 200 directly elected in a singl |
| 2022 | description: bicameral National Congress or Congreso de la Union consists of: Senate or Camara de Senadores (128 seats; 96 members directly elected in multi-seat constituencies by simple majority vote and 32 directly elected in a single, nationwide constituency by proportional representation vote; members serve 6-year terms) Chamber of Deputies or Camara de Diputados (500 seats; 300 members directly elected in single-seat constituencies by simple majority vote and 200 directly elected in a singl |
| 2023 | description: bicameral National Congress or Congreso de la Uni n consists of: Senate or C mara de Senadores (128 seats; 96 members directly elected in multi-seat constituencies by simple majority vote and 32 directly elected in a single, nationwide constituency by proportional representation vote; members serve 6-year terms) Chamber of Deputies or C mara de Diputados (500 seats; 300 members directly elected in single-seat constituencies by simple majority vote and 200 directly elected in a singl |
| 2024 | description: bicameral National Congress or Congreso de la Uni n consists of: Senate or C mara de Senadores (128 seats; 96 members directly elected in multi-seat constituencies by simple majority vote and 32 directly elected in a single, nationwide constituency by proportional representation vote; members serve 6-year terms) Chamber of Deputies or C mara de Diputados (500 seats; 300 members directly elected in single-seat constituencies by simple majority vote and 200 directly elected in a singl |
| 2025 | legislature name: Congress of the Union (Congreso de la Unión) legislative structure: bicameral note: as of the 2018 election, senators will be eligible for a second term and deputies up to 4 consecutive terms |