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Year
1989
7
1987
6
1991
4
1992
4
2005
4
1997
3
1999
3
2003
3
1968
2
1978
2
1980
2
1983
2
1993
2
1994
2
1995
2
1998
2
2000
2
2004
2
2007
2
2009
2
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