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| 1976 | 1978 | 1979 | 1980 | 1981a |
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| 1981b | 1982 | 1983a | 1983b | 1984 |
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| 1985a* | 1985b | 1985c | 1986a | 1986b |
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| 1987 | 1988 | 1989 | 1990 | 1991 |
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| 1993 | 1994a | 1994b | 1997 | 1998a |
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| 1998b | 2001 | 2002 | 2005 | 2006 |
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| 2008 | 2010 | 2012 | 2013a | 2013b |
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| 2016 | 2019 | |||