Era
13th century
1
1819-1891
1
1859-1938
1
1900-1999
1
1900-2099
1
1918-1945
1
1933-1939
1
1933-1945
1
1945-
4
1945-1983
2
1953-
1
1961-
1
1961-1971
1
1969-1974
1
1971-
2
1971-1981
1
1971-1990
1
1975-1985
2
1980-
1
1984-
2
1989-
2
1990-
1
19th century
1
2000-
1
2000-2099
3
20th century
4
21st century
4
Appropriations and expenditures, 1981-1982
1
Since 1945
1