| | | | | | 1956 5 | 1975 8 1976 | 8 | | | 1976 8 1978 3 | | 1978 3 1979 12 | | 1980 1 1984 4 | | 1984 4 1994 7 | | | | 1994 7 1998 7 | | 1998 7 2004 4 | | 2004 4 2008 1 | | 2008 1 2008 7 | | 2008 7 2013 1 | | 2009 1 2013 3 | | | 2013 1 2017 1 | | 2017 1 | |