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Historical Values
Year Value
1990 bicameral National Congress (Congresso Nacional) consists of an upper chamber or Senate (Senado) and a lower chamber or Chamber of Deputies (Camara dos Deputados)
1991 bicameral National Congress (Congresso Nacional) consists of an upper chamber or Federal Senate (Senado Federal) and a lower chamber or Chamber of Deputies (Camara dos Deputados)
1992 bicameral National Congress (Congresso Nacional) consists of an upper chamber or Federal Senate (Senado Federal) and a lower chamber or Chamber of Deputies (Camara dos Deputados)
1993 bicameral National Congress (Congresso Nacional) consists of an upper chamber or Federal Senate (Senado Federal) and a lower chamber or Chamber of Deputies (Camara dos Deputados)
1994 bicameral National Congress (Congresso Nacional)
1994 election last held 3 October 1990 (next to be held October 1994); results - percent of vote by party PMBD 33%, PFL 16%, PSDB 12%, PDS 4%, PDT 6%, PT 1%, other 28%; seats - (81 total as of 3 February 1991) PMDB 27, PFL 15, PSDB 10, PTB 8, PDT 5, other 16
1994 election last held 3 October 1990 (next to be held October 1994); results - PMDB 21%, PFL 17%, PDT 9%, PDS 8%, PRN 7.9%, PTB 7%, PT 7%, other 23.1%; seats - (503 total as of 3 February 1991) PMDB 108, PFL 87, PDT 46, PDS 43, PRN 40, PTB 35, PT 35, other 109
1995 bicameral National Congress (Congresso Nacional)
1995 election last held 3 October 1994 for two-thirds of Senate (next to be held October 1996 for one-third of the Senate); results - PMBD 28%, PFL 22%, PSDB 12%, PPR 7%, PDT 7%, PT 6%, PTB 6%, other 12%
1995 election last held 3 October 1994 (next to be held October 1998); results - PMDB 21%, PFL 18%, PDT 7%, PSDB 12%, PPR 10%, PTB 6%, PT 10%, other 16%
1996 bicameral National Congress (Congresso Nacional)
1996 election last held 3 October 1994 for two-thirds of Senate (next to be held October 1996 for one-third of the Senate); results - PMBD 28%, PFL 22%, PSDB 12%, PPR 7%, PDT 7%, PT 6%, PTB 6%, other 12%; seats - (81 total) seats by party NA
1996 election last held 3 October 1994 (next to be held October 1998); results - PMDB 21%, PFL 18%, PDT 7%, PSDB 12%, PPR 10%, PTB 6%, PT 10%, other 16%; seats - (517 total) seats by party NA note: party totals since Fall 1994 have changed considerably due to extensive party-switching
1997 bicameral National Congress or Congresso Nacional consists of the Federal Senate or Senado Federal (81 seats; three members from each state or federal district elected according to the principle of majority to serve eight-year terms; one-third elected after a four year period, two-thirds elected after the next four-year period ) and the Chamber of Deputies or Camara dos Deputados (513 seats; members are elected by proportional representation to serve four-year terms) elections: Federal Senate -
1998 bicameral National Congress or Congresso Nacional consists of the Federal Senate or Senado Federal (81 seats; three members from each state or federal district elected according to the principle of majority to serve eight-year terms; one-third elected after a four year period, two-thirds elected after the next four-year period) and the Chamber of Deputies or Camara dos Deputados (513 seats; members are elected by proportional representation to serve four-year terms) elections: Federal Senate-las
1999 bicameral National Congress or Congresso Nacional consists of the Federal Senate or Senado Federal (81 seats; three members from each state or federal district elected according to the principle of majority to serve eight-year terms; one-third elected after a four year period, two-thirds elected after the next four-year period) and the Chamber of Deputies or Camara dos Deputados (513 seats; members are elected by proportional representation to serve four-year terms) elections: Federal Senate--la
2000 bicameral National Congress or Congresso Nacional consists of the Federal Senate or Senado Federal (81 seats; three members from each state or federal district elected according to the principle of majority to serve eight-year terms; one-third elected after a four year period, two-thirds elected after the next four-year period) and the Chamber of Deputies or Camara dos Deputados (513 seats; members are elected by proportional representation to serve four-year terms) elections: Federal Senate - l
2001 bicameral National Congress or Congresso Nacional consists of the Federal Senate or Senado Federal (81 seats; three members from each state or federal district elected according to the principle of majority to serve eight-year terms; one-third elected after a four year period, two-thirds elected after the next four-year period) and the Chamber of Deputies or Camara dos Deputados (513 seats; members are elected by proportional representation to serve four-year terms) elections: Federal Senate -
2002 bicameral National Congress or Congresso Nacional consists of the Federal Senate or Senado Federal (81 seats; three members from each state or federal district elected according to the principle of majority to serve eight-year terms; one-third elected after a four-year period, two-thirds elected after the next four-year period) and the Chamber of Deputies or Camara dos Deputados (513 seats; members are elected by proportional representation to serve four-year terms) election results: Federal Sen
2003 bicameral National Congress or Congresso Nacional consists of the Federal Senate or Senado Federal (81 seats; three members from each state or federal district elected according to the principle of majority to serve eight-year terms; one-third elected after a four-year period, two-thirds elected after the next four-year period) and the Chamber of Deputies or Camara dos Deputados (513 seats; members are elected by proportional representation to serve four-year terms) election results: Federal Sen
2004 bicameral National Congress or Congresso Nacional consists of the Federal Senate or Senado Federal (81 seats; three members from each state and federal district elected according to the principle of majority to serve eight-year terms; one-third elected after a four-year period, two-thirds elected after the next four-year period) and the Chamber of Deputies or Camara dos Deputados (513 seats; members are elected by proportional representation to serve four-year terms) elections: Federal Senate -
2005 bicameral National Congress or Congresso Nacional consists of the Federal Senate or Senado Federal (81 seats; three members from each state and federal district elected according to the principle of majority to serve eight-year terms; one-third elected after a four-year period, two-thirds elected after the next four-year period) and the Chamber of Deputies or Camara dos Deputados (513 seats; members are elected by proportional representation to serve four-year terms) elections: Federal Senate -
2006 bicameral National Congress or Congresso Nacional consists of the Federal Senate or Senado Federal (81 seats; 3 members from each state and federal district elected according to the principle of majority to serve eight-year terms; one-third elected after a four-year period, two-thirds elected after the next four-year period) and the Chamber of Deputies or Camara dos Deputados (513 seats; members are elected by proportional representation to serve four-year terms) elections: Federal Senate - last
2007 bicameral National Congress or Congresso Nacional consists of the Federal Senate or Senado Federal (81 seats; 3 members from each state and federal district elected according to the principle of majority to serve eight-year terms; one-third and two-thirds elected every four years, alternately) and the Chamber of Deputies or Camara dos Deputados (513 seats; members are elected by proportional representation to serve four-year terms) elections: Federal Senate - last held 1 October 2006 for one-thi
2008 bicameral National Congress or Congresso Nacional consists of the Federal Senate or Senado Federal (81 seats; 3 members from each state and federal district elected according to the principle of majority to serve eight-year terms; one-third and two-thirds elected every four years, alternately) and the Chamber of Deputies or Camara dos Deputados (513 seats; members are elected by proportional representation to serve four-year terms) elections: Federal Senate - last held 1 October 2006 for one-thi
2009 bicameral National Congress or Congresso Nacional consists of the Federal Senate or Senado Federal (81 seats; 3 members from each state and federal district elected according to the principle of majority to serve eight-year terms; one-third and two-thirds elected every four years, alternately) and the Chamber of Deputies or Camara dos Deputados (513 seats; members are elected by proportional representation to serve four-year terms) elections: Federal Senate - last held 1 October 2006 for one-thi
2010 bicameral National Congress or Congresso Nacional consists of the Federal Senate or Senado Federal (81 seats; 3 members from each state and federal district elected according to the principle of majority to serve eight-year terms; one-third and two-thirds of members elected every four years, alternately) and the Chamber of Deputies or Camara dos Deputados (513 seats; members are elected by proportional representation to serve four-year terms) elections: Federal Senate - last held on 3 October 20
2011 bicameral National Congress or Congresso Nacional consists of the Federal Senate or Senado Federal (81 seats; 3 members from each state and federal district elected according to the principle of majority to serve eight-year terms; one-third and two-thirds of members elected every four years, alternately) and the Chamber of Deputies or Camara dos Deputados (513 seats; members are elected by proportional representation to serve four-year terms) elections: Federal Senate - last held on 3 October 20
2012 bicameral National Congress or Congresso Nacional consists of the Federal Senate or Senado Federal (81 seats; 3 members from each state and federal district elected according to the principle of majority to serve eight-year terms; one-third and two-thirds of members elected every four years, alternately) and the Chamber of Deputies or Camara dos Deputados (513 seats; members are elected by proportional representation to serve four-year terms) elections: Federal Senate - last held on 3 October 20
2013 bicameral National Congress or Congresso Nacional consists of the Federal Senate or Senado Federal (81 seats; 3 members from each state and federal district elected according to the principle of majority to serve eight-year terms; one-third and two-thirds of members elected every four years, alternately) and the Chamber of Deputies or Camara dos Deputados (513 seats; members are elected by proportional representation to serve four-year terms) elections: Federal Senate - last held on 3 October 20
2014 bicameral National Congress or Congresso Nacional consists of the Federal Senate or Senado Federal (81 seats; 3 members from each state and federal district elected according to the principle of majority to serve eight-year terms; one-third and two-thirds of members elected every four years, alternately) and the Chamber of Deputies or Camara dos Deputados (513 seats; members are elected by proportional representation to serve four-year terms) elections: Federal Senate - last held on 3 October 20
2015 description: bicameral National Congress or Congresso Nacional consists of the Federal Senate or Senado Federal (81 seats; 3 members each from 26 states and 3 from the federal district directly elected in multi-seat constituencies by simple majority vote to serve 8-year terms, with one-third and two-thirds of the membership elected alternately every 4 years) and the Chamber of Deputies or Camara dos Deputados (513 seats; members directly elected in multi-seat constituencies by proportional repre
2016 description: bicameral National Congress or Congresso Nacional consists of the Federal Senate or Senado Federal (81 seats; 3 members each from 26 states and 3 from the federal district directly elected in multi-seat constituencies by simple majority vote to serve 8-year terms, with one-third and two-thirds of the membership elected alternately every 4 years) and the Chamber of Deputies or Camara dos Deputados (513 seats; members directly elected in multi-seat constituencies by proportional repre
2017 description: bicameral National Congress or Congresso Nacional consists of the Federal Senate or Senado Federal (81 seats; 3 members each from 26 states and 3 from the federal district directly elected in multi-seat constituencies by simple majority vote to serve 8-year terms, with one-third and two-thirds of the membership elected alternately every 4 years) and the Chamber of Deputies or Camara dos Deputados (513 seats; members directly elected in multi-seat constituencies by proportional repre
2018 description: bicameral National Congress or Congresso Nacional consists of: Federal Senate or Senado Federal (81 seats; 3 members each from 26 states and 3 from the federal district directly elected in multi-seat constituencies by simple majority vote to serve 8-year terms, with one-third and two-thirds of the membership elected alternately every 4 years) Chamber of Deputies or Camara dos Deputados (513 seats; members directly elected in multi-seat constituencies by proportional representation v
2019 description: bicameral National Congress or Congresso Nacional consists of: Federal Senate or Senado Federal (81 seats; 3 members each from 26 states and 3 from the federal district directly elected in multi-seat constituencies by simple majority vote to serve 8-year terms, with one-third and two-thirds of the membership elected alternately every 4 years) Chamber of Deputies or Camara dos Deputados (513 seats; members directly elected in multi-seat constituencies by proportional representation v
2020 description: bicameral National Congress or Congresso Nacional consists of: Federal Senate or Senado Federal (81 seats; 3 members each from 26 states and 3 from the federal district directly elected in multi-seat constituencies by simple majority vote to serve 8-year terms, with one-third and two-thirds of the membership elected alternately every 4 years) Chamber of Deputies or Camara dos Deputados (513 seats; members directly elected in multi-seat constituencies by proportional representation v
2021 description: bicameral National Congress or Congresso Nacional consists of: Federal Senate or Senado Federal (81 seats; 3 members each from 26 states and 3 from the federal district directly elected in multi-seat constituencies by simple majority vote to serve 8-year terms, with one-third and two-thirds of the membership elected alternately every 4 years) Chamber of Deputies or Camara dos Deputados (513 seats; members directly elected in multi-seat constituencies by party-list proportional repre
2022 description: bicameral National Congress or Congresso Nacional consists of: Federal Senate or Senado Federal (81 seats; 3 members each from 26 states and 3 from the federal district directly elected in multi-seat constituencies by simple majority vote to serve 8-year terms, with one-third and two-thirds of the membership elected alternately every 4 years) Chamber of Deputies or Camara dos Deputados (513 seats; members directly elected in multi-seat constituencies by party-list proportional repre
2023 description: bicameral National Congress or Congresso Nacional consists of: Federal Senate or Senado Federal (81 seats; 3 members each from 26 states and 3 from the federal district directly elected in multi-seat constituencies by simple majority vote to serve 8-year terms, with one-third and two-thirds of the membership elected alternately every 4 years) Chamber of Deputies or Camara dos Deputados (513 seats; members directly elected in multi-seat constituencies by open party-list proportional
2024 description: bicameral National Congress or Congresso Nacional consists of: Federal Senate or Senado Federal (81 seats; 3 members each from 26 states and 3 from the federal district directly elected in multi-seat constituencies by simple majority vote to serve 8-year terms, with one-third and two-thirds of the membership elected alternately every 4 years) Chamber of Deputies or Camara dos Deputados (513 seats; members directly elected in multi-seat constituencies by open party-list proportional
2025 legislature name: National Congress (Congresso nacional) legislative structure: bicameral