Era
1924-
20th century
18
1977-1981
15
1900-1999
6
1913-2006
4
1974-1977
4
1960-1980
3
1913-1994
2
1969-1974
2
1980-
2
1913-2001
1
1914-1996
1
1917-2002
1
1923-
1
1927-2019
1
1928-2017
1
1928-2021
1
1932-2010
1
1943-
1
1951-
1
1952-
1
1976
1
1977-
1
1980
1
1989-
1
2013
1
Cyprus Crisis, 1974-
1
Since 1900
1
Since 1951
1