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Historical Values
Year Value
1990 ratified 30 September 1987
1991 ratified 30 September 1987
1992 ratified 30 September 1987
1993 ratified 30 September 1987
1994 ratified 30 September 1987
1995 ratified 30 September 1987
1996 ratified 30 September 1987
1997 ratified 30 September 1987
1998 ratified 30 September 1987
1999 ratified 30 September 1987
2000 ratified 30 September 1987
2001 ratified 30 September 1987
2002 ratified 30 September 1987
2003 ratified 30 September 1987
2004 ratified 30 September 1987
2005 ratified 30 September 1987
2006 ratified 30 September 1987
2007 ratified 30 September 1987; effective 30 October 1987
2008 ratified 30 September 1987; effective 30 October 1987
2009 ratified 30 September 1987; effective 30 October 1987
2010 ratified 30 September 1987; effective 30 October 1987
2011 ratified 30 September 1987; effective 30 October 1987
2012 ratified 30 September 1987; effective 30 October 1987
2013 previous 1975; latest ratified 30 September 1987, effective 30 October 1987; amended 1992; note - in 2012, the president appointed a commission to revise the constitution (2012)
2014 previous 1975; latest ratified 30 September 1987, effective 30 October 1987; amended 1992; note - in 2012, the president appointed a commission to revise the constitution (2012)
2015 previous 1975; latest ratified 30 September 1987, effective 30 October 1987; amended 1992 (2015)
2016 previous 1975; latest ratified 30 September 1987, effective 30 October 1987; amended 1992 (2016)
2017 previous 1975; latest ratified 30 September 1987, effective 30 October 1987; amended 1992 (2016)
2018 history: previous 1975; latest ratified 30 September 1987, effective 30 October 1987 (2018) | amendments: proposed by the National Assembly; passage requires at least two-thirds majority vote of the total membership; amended 1992 (2018)
2019 history: previous 1975; latest ratified 30 September 1987, effective 30 October 1987 | amendments: proposed by the National Assembly; passage requires at least two-thirds majority vote of the total membership; amended 1992 (2018)
2020 history: previous 1975; latest ratified 30 September 1987, effective 30 October 1987 | amendments: proposed by the National Assembly; passage requires at least two-thirds majority vote of the total membership; amended 1992
2021 history: previous 1975; latest ratified 30 September 1987, effective 30 October 1987 amendments: proposed by the National Assembly; passage requires at least two-thirds majority vote of the total membership; amended 1992
2022 history: previous 1975; latest ratified 30 September 1987, effective 30 October 1987 amendments: proposed by the National Assembly; passage requires at least two-thirds majority vote of the total membership; amended 1992
2023 history: previous 1975; latest ratified 30 September 1987, effective 30 October 1987 amendments: proposed by the National Assembly; passage requires at least two-thirds majority vote of the total membership; amended 1992
2024 history: previous 1975; latest ratified 30 September 1987, effective 30 October 1987 amendments: proposed by the National Assembly; passage requires at least two-thirds majority vote of the total membership; amended 1992
2025 history: previous 1975; latest ratified 30 September 1987, effective 30 October 1987 amendment process: proposed by the National Assembly; passage requires at least two-thirds majority vote of the total membership