Era
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1937-
1
1938-
1
1941-
1
1943-
1
1945-2014
2
1946-
1
1946-2015
1
1947-
5
1947-2010
1
1949-
4
1950-
2
1951-
1
1953-
1
1954-
3
1959-
1
1960-
1
1961-
2
1961-1969
1
1964-
1
1966
1
1966-
1
1967-
1
1969-
1
1971
2
1971-
1
1980-
1
1983-
1
1989
1
19th century
11
2000-2010
1
2014
1
2015
1
20th century
23
21st century
9