Era
21st century
16
1947-
6
20th century
4
1947
2
1976-
2
1977-
2
1991-
2
21st century --
2
1837-1901
1
1855-1957
1
1865-1918
1
1865-1921
1
1865-1933
1
1918-1933
1
1923-
1
1933-1945
1
1945-
1
1951-
1
1976-2000
1
1988-
1
1989-
1
1990-
1
1991
1
1994-
1
1995-
1
19th century
1
2000
1
2000-
1
2001-
1
2002
1
2002-
1
2009-2017
1
21th century
1