Era
1991-
Since 1947
1947-
154
1980-1991
84
1980-
70
1991-2016
59
1980-1991-
29
1977-
26
Since 1991
6
1976-2000
3
1980 - 1991
3
2000-
3
1966-
2
1984-
2
20th century
2
(1932- ...)
1
1904-1993
1
1931-
1
1932-
1
1949-
1
1950-
1
1974-1980
1
1976-2002
1
2000-2099
1
21st century
1
Congresses
1
Geschichte 1950-1996
1
Geschichte 1970-2006
1
Since 1977
1
Since 1980
1