In what year was the winner of the US Open (at Oakmont) in 2007 born?
1969
1984
1984
1984
1973
1984
1973
1980
1979
1984
1972
1973
1980
1979
1984
1972
1983
1973
1980
1979
1984
1982
1972
1983
1973
1980
1979
1984
1982
1972
1983
1973
1971
1991
1980
1979
1984
1981
1982
1972
1983
1973
1971
1991
1980
1979
1984
1981
1982
1972
1983
1973
1971
1991
1980
1979
1984
1981
1982
1972
1983
1973
1971
1991
1980
1979
1984
1981
1982
1972
1983
1973
1971
1991
1980
1979
1984
1981
1982
1972
1983
1973
1971
1991
1980
1979
1984
1981
1986
1988
1982
1972
1983
1973
1971
1987
1991
1980
1979
1984
1981
1986
1988
1982
1972
1983
1973
1971
1987
1991
1980
1975
1979
1984
1981
1986
1988
1982
1972
1983
1973
1971
1987
1977
1991
1980
1975
1979
1984
1981
1986
1988
1982
1972
1983
1976
1973
1971
1987
1977
1991
1980
1978
1975
1979
1984
1981
1986
1988
1982
1972
1983
1976
1973
1971
1987
1977
1991
1980
1978
1975
1979
1984
1981
1986
1988
1982
1972
1983
1976
1973
1971
1987
1977
1890
1991
1980
1978
1975
1979
1984
1981
1986
1988
1982
1972
1990
1964
1983
1976
1985
1973
1971
1987
1991
1980
1896
1893
1892
1876
1899