Era
20th century
14
21st century
8
2011
7
19th century
5
1900-1999
4
1991
4
2010
4
1958-
3
17th century
2
1800-1999
2
18th century
2
1980-
2
1986
2
2000-
2
2000-2099
2
Since 2000
2
active 1988-2013
2
1600-1799
1
1800-1899
1
1817-1884
1
1883-1950
1
1900-1965
1
1900-2099
1
1927-2014
1
1928-
1
1929-
1
1931-
1
1936?-
1
1942-
1
1945-1991
1
1946-
1
1950-
1
1959-
1
1960-
1
1960-1980
1
1966-
1
1968-
1
1970-
1
1972-
1
1981-1993
1
1981-2001
1
1985-1991
1
1989
1
1989-
1
1991-
1
1991-2011
1
2001
1
2001-2009
1
20e siècle
1
Appropriations and expenditures, 1989-1990
1
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