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| 1968a | 1968b | 1969a | 1969b | 1970 |
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| 1971a | 1971b | 1971c | 1972a | 1972b |
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| 1973a | 1973b | 1973c | 1975 | 1977 |
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| 1978a | 1978b | 1978c | 1979 | 1983 |
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| 1985 | 1986a | 1986b | 1986c | 1988 |
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| 1989 | 1990a | 1990b | 1990c | 1991 |
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| 1992a | 1992b | 1992c | 1993 | 1995a |
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| 1995b | 1995c | 1997a | 1997b | 1999 |
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| 2000a | 2000b | 2000c | 2000d | 2001 |
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| 2004a | 2004b | 2004c | 2005a | 2006a |
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| 2007a | 2007b | 2011 |