Era
1985-
29
1945-
15
21st century
12
1982-
9
1964-1985
5
1985-2002
5
20th century
5
2000 - 2099
3
1918-
2
1948-1980
2
1980-
2
2000-
2
2000-2099
2
1889-1930
1
1922-1930
1
1945- Congresses
1
1945-1982
1
1954-
1
1964-
1
1974-
1
1974-1984
1
1976-
1
1988-2002
1
19th century
1
2002
1
2002-
1
2003-
1
21e siècle
1
Since 1948
1
Since 1974
1
Since 1982
1
Since 2000
1