Era
1810-1821
1
1821-1861
1
1867-1910
1
1890-1973
1
1897-1955
1
1900-1999
1
1900-2000
1
1905-1983
1
1910-1946
1
1918-1975
1
1939-1975
1
1946-
2
1946-1970
2
1946-1974
1
1952-
1
1952-1998
1
1970-
1
1970-1988
1
1971-
2
1974-
3
1975-
1
1975-1982
1
1976-
1
1979-
2
1980-
1
1982-
1
1986-
1
1988-
1
1988-2000
2
1989-
1
1990-
2
1991-
2
1993-2001
2
1994-
1
1999-
2
19th century
1
2000-
4
2000-2099
2
2001-2009
1
2003-
2
2009-
1
2009-2017
2
2017-2021
1
20th century
4
21st century
6
Attempted coup, 2002
1
Civil War, 2011-
2
Siglo XXI
1
Since 1946
1
Since 1970
1
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