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| 1970 | 1973** | 1975** | 1977** | 1980 |
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| 1985 | 1986a | 1986b |
1990 |
1993 |
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| 1995 | 1999a | 1999b | 2001 | 2003 |
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| 2004a | 2004b | 2008 | 2009 | 2012 |
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| 2014 | 2015 | |||