Era
1945-
25
Since 1945
20
1991-
10
Since 1991
8
1990-
6
1970-
5
Since 1990
5
1974-
4
1989-
4
1972-
3
1975-
3
1979-1997
3
1981-
3
1997-
3
Since 1970
3
Since 1976
3
Since 1989
3
1947-
2
1952-
2
1958-
2
1960-
2
1968-
2
1973-
2
1974-2009
2
1975-2008
2
1980-
2
1981-2001
2
1982-
2
1982-1994
2
1983-
2
1985-
2
1986-
2
1988-
2
1993-
2
2000-
2
2002-
2
Since 1947
2
Since 1952
2
Since 1958
2
Since 1960
2
Since 1972
2
Since 1974
2
Since 1975
2
Since 1983
2
Since 1985
2
Since 1986
2
Since 1988
2
Since 1993
2
1918-
1
1945-1979
1
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