Era
1985-1991
1991-
47
Since 1985
19
1931-2007
8
1970-1991
7
1931-
6
1953-1985
6
20th century
6
1923-2005
4
1952-
4
1975-1985
4
1864-1920
2
1900-1999
2
1925-1953
2
1931-2022
2
1949-1976
2
1953-1975
2
1976-
2
1980-1992
2
1986-1991
2
1989-
2
1992-2006
2
Attempted coup, 1991
2
Since 1970
2
1917-1936
1
1925-1991
1
1934-
1
1946-
1
1975-1991
1
Geschichte 1985-1991
1
Geschichte 1991-2001
1
Since 1900
1
Since 1917
1
Since 1949
1
Since 1953
1