When did Metallica put out their fifth album?
1991
1984
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1987
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1981
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1980
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1981
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1989
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1980
1987
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1984
1981
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1982
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1983
1989
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1980
1987
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1984
1981
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1980
1987
1991
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1986
1984
1981
1990
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1985
1982
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1983
1989
1992
1996
1997
1980
1987
1991
1995
1988