Era
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1992-
13
Since 1970
13
Since 1994
13
1800-1999
12
1883-1946
12
1959-
12
1959-1990
12
Since 1981
12
1888-1918
11
1961-
11
1970-
11
1985-
11
To 1865
11
1644-1912
10
1912-1949
10
1917-1936
10
1924-
10
1945-1980
10
1951-
10
1969-1974
10
1976-1980
10
1977-
10
1981-1990
10
2000 - 2099
10
Since 1918
10
Since 1959
10
1893-1976
9
1939-1951
9
1945-1971
9
1973-1988
9
1983-
9
1998-
9
Since 1952
9
Since 1982
9
Since 2001
9
1865-
8
1910-1936
8
1938-1942
8
1958-
8
1970-1988
8
1999-
8
Since 1974
8
1865-1950
7
1874-1964
7
1878-1953
7
1899-1992
7
1930-
7
1945-1991
7
1953-1985
7
1962-
7
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