1972	1973	1974	1976a	1976b*
1978	1981	1982*	1983	1985
1986*	1987a*	1987b*	1988	1990
1993*	1994*	1995a	1995b*	1996a
1996b*	1998a	1998b	1998c*	1998d*
1999a*	1999b*	1999c*	1999d*	2000*
2001a*	2001b	2001c	2001d*	2003a
2003b*	2003c*	2004a	2004b	2004c*
2006a*	2006b*	2007a*	2007b*	2007c
2007d*	2009a*	2009b*	2011	2012a
2012b	2015*	2016	2017*	2018*
2019*	2020*	2021*	2020*