1900 - 1901
1901 - 1906
1906 - 1908
1908 - 1919
1919 - 1920
1920 - 1921
1921 - 1924
1924 - 1931
1931 - 1935
1935 - 1936
1936 - 1938
1938 - 1945
1945 - 1955
1955 - 1966
1966 - 1967
1967 - 1978
1978 - 1997
1997 - 2002
2002 - 2017
since 2017
