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| 1970a | 1970b | 1971* | 1973a** | 1973b |
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| 1974a | 1974b | 1974c** | 1974d** | 1975a |
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| 1975b** | 1977a** | 1977b** | 1980 | 1983 |
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| 1985 | 1986a | 1986b | 1988 | 1990a |
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| 1990b | 1992 | 1993 | 1995 | 1996 |
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| 1997 | 1998a | 1998b | 1998c | 1999a |
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| 1999b | 2001a | 2001b |
2003 | 2004a |
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| 2004b | 2005 |
2008 | 2012 | 2014 |