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| 1988 | 1989 | 1990 | 1991 | 1992 |
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| 1993 | 1994 | 1995 | 1996 | 1997 |
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| 1998 | 1999 | 2000 | 2001 | 2002 |
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| 2003 | 2004 | 2005 | 2006 | 2007 |
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| 2008 | 2009 | 2010 | 2011 | 2012 |
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| 2013 | 2014 | 2015 | 2016 | 2017 |
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Corona-Virus |
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| 2018 | 2019 | 2020 - 2021 | 2022 | 2023 |
| 2024 ? |
