Era
1990-
1971-1990
50
Since 1990
41
1945-
22
Since 1971
22
1959-1990
19
1989-
14
Since 1945
14
1979-
12
1945-1990
11
1979-1990
10
20th century
10
1992-
8
1959-
7
1971-
7
Since 1989
7
1968-
6
1960-
5
1982-
5
1945-1989
4
1946-1990
4
1981-
4
Since 1960
4
Since 1968
4
1944-1990
3
1960-1990
3
1971 - 1990
3
Since 1944
3
Since 1979
3
1900-
2
1944-
2
1944-1989
2
1945-1992
2
1959 - 1990
2
1960-2005
2
1962-
2
1966-
2
1974-1990
2
1975-
2
1975-1990
2
1980-
2
1981-1990
2
1981-2001
2
1988-
2
1991-
2
Since 1946
2
Since 1962
2
Since 1974
2
Since 1975
2
Since 1981
2
more ...