Era
1990-
1959-1990
16
20th century
9
Since 1990
9
1959-
8
1926-2016
7
Civil War, 1996-2006
4
Unification, 1990
4
1992-
3
Since 1900
3
1933-1959
2
1944-2005
2
1945-1990
2
1952-
2
1979-
2
1980-1992
2
Since 1945
2
1894-1971
1
1917-1963
1
1920-2005
1
1923-2015
1
1927-
1
1946-1990
1
1961-
1
1962-1990
1
1980-
1
1989-
1
1994-
1
2006
1
21st century
1
Civil War, 1975-2002
1
Revolution, 1959
1
Revolution, 1979
1
Since 1959
1
Since 1989
1