1977
9
1978
12
1979
12
1980
12
1981
12
1982
13
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13
1984
13
1985
13
1986
5
1987
4
1988
4
1989
7
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6
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6
1992
7
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8
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8
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8
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8
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8
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9
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9
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10
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9
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9
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10
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9
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9
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9
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9
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9
2009
5
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