Era
1945-
7
1991-
4
Since 1945
4
Since 1991
4
1997-
2
1945-1979
1
1945-1981
1
1945-1997
1
1966-1997
1
1966-1998
1
1970-
1
1970-1982
1
1971-
1
1971-1991
1
1976-2002
1
1979-1997
1
1980-
1
1982-1994
1
1983-
1
1983-2002
1
1985-
1
1985-2002
1
1992-
1
1998-
1
2000-
1
2002-
1
2003-
1
Since 1966
1
Since 1976
1
Since 1983
1
Since 1985
1
Since 1992
1