1903 - 1904
1904 - 1918
1918 - 1945
1945 - 1949
1949 - 1968
1968 - 1970
1970 - 1981
1981 - 1983
1983 - 1986
1986 - 1995
1995 - 1996
1996 - 1997
1997 - 2001
2001 - 2012
2012 - 2017
since 2017
