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Historical Values
Year Value
1990 5 February 1917
1991 5 February 1917
1992 5 February 1917
1993 5 February 1917
1994 5 February 1917
1995 5 February 1917
1996 5 February 1917
1997 5 February 1917
1998 5 February 1917
1999 5 February 1917
2000 5 February 1917
2001 5 February 1917
2002 5 February 1917
2003 5 February 1917
2004 5 February 1917
2005 5 February 1917
2006 5 February 1917
2007 5 February 1917
2008 5 February 1917
2009 5 February 1917
2010 5 February 1917
2011 5 February 1917
2012 5 February 1917
2013 several previous; latest approved 5 February 1917; amended many times, last in 2012 (2012)
2014 several previous; latest approved 5 February 1917; amended many times, last in 2014 (2014)
2015 several previous; latest approved 5 February 1917; amended many times, last in 2014 (2014)
2016 several previous; latest approved 5 February 1917; amended many times, last in 2015 (2016)
2017 several previous; latest approved 5 February 1917; amended many times, last in 2015 (2016)
2018 history: several previous; latest approved 5 February 1917 (2018) | amendments: proposed by the Congress of the Union; passage requires approval by at least two-thirds of the members present and approval by a majority of the state legislatures; amended many times, last in 2017 (2018)
2019 history: several previous; latest approved 5 February 1917 | amendments: proposed by the Congress of the Union; passage requires approval by at least two thirds of the members present and approval by a majority of the state legislatures; amended many times, last in 2019 (2019)
2020 history: several previous; latest approved 5 February 1917 | amendments: proposed by the Congress of the Union; passage requires approval by at least two thirds of the members present and approval by a majority of the state legislatures; amended many times, last in 2020
2021 history: several previous; latest approved 5 February 1917 amendments: proposed by the Congress of the Union; passage requires approval by at least two thirds of the members present and approval by a majority of the state legislatures; amended many times, last in 2020
2022 history: several previous; latest approved 5 February 1917 amendments: proposed by the Congress of the Union; passage requires approval by at least two thirds of the members present and approval by a majority of the state legislatures; amended many times, last in 2020
2023 history: several previous; latest approved 5 February 1917 amendments: proposed by the Congress of the Union; passage requires approval by at least two thirds of the members present and approval by a majority of the state legislatures; amended many times, last in 2020
2024 history: several previous; latest approved 5 February 1917 amendments: proposed by the Congress of the Union; passage requires approval by at least two thirds of the members present and approval by a majority of the state legislatures; amended many times, last in 2024
2025 history: several previous; latest approved 5 February 1917 amendment process: proposed by the Congress of the Union; passage requires approval by at least two thirds of the members present and approval by a majority of the state legislatures