1990
1994
1968
1977
2003
1981
1965
1967
1969
1965
1965
1979
1965
1965
1996
1974
1974
1975
1977
1982
1979
1970
1969
1978
1975
1970
1964
1979
1966
1998
1990
1964
1974
1991
1972
1991
1994
1990
1987
1967
1970
1993
2001
1964
1966
1962
1962
1962
1969
1981
1997
1993
1977
1966
1962
1972
1977
1971
1977
1973
1971
1984
1975
1972
1994
1965
1970
1985
1974
1977
1985
1971
1970
1994
1966
1993
1977
1969
1969
1970
1984
1971
1980
1980
1987
1996
1992
1997
1976
1977
1968
1969
1971
1970
1979
1980
1966
1964
1969
1967
1992
1975
1971
1998
1982
1989
1973
1997
1998
1967
1967
1967
1995
1971
1975
1971
1971
1968
1968
1977
1977
1982
1981
1970
1969
1978
1978
1967
1963
1966
1963
1979
1961
1972
1963
1964
1966
1965
1967
1965
1964
1981
1981
1981
1981
1972
2001
2000
2004
1994
1986
1991
1979
1978
1994
1975
2007
1971
1997
1967
1973
1974
1965
1966
1985
1976
1987
1983
1981
1968
1968
1967
1969
1969
1964
1967
1968
1991
1993
1973
2006
2008
2002
2001
1997
1968
1967
1971
1970
1971
1972
1964
1970
1969
1965
1972
1965
1966
1967
2004
1996
1964
1972
2002
1970
1976
1973
1972
1966
1969
1972
1974
1971
1969
1968
1964
1965
1964
1963
1967
1962
1965
1965
1966
1968
1967
1966
1966
Comments