1971
1981
1967
1970
1973
1971
1987
1984
1962
1950
1978
1956
1973
1955
1987
1972
1957
1958
1957
1955
1953
1954
1975
1955
1958
1956
1953
1954
1990
1975
1981
1984
1970
1989
1973
1979
1980
1980
1977
1962
1983
1962
1958
1950
1954
1953
1981
1985
1959
1991
1954
1958
1981
1991
1990
1974
1970
1988
1975
1988
1979
1984
1994
1972
1974
1973
1990
1970
1970
1958
1979
1956
1960
1969
1966
1959
1959
1958
1969
1975
1971
1984
1955
1952
1960
1974
1973
1979
1957
1961
1961
1965
1956
1954
2008
1996
2006
2011
2015
2003
2003
2003
2002
2005
2006
2016
2002
2003
2008
1988
1986
1968
1988
1985
1985
1982
1981
1999
1983
1983
1986
1971
2010
2000
1971
1980
2013
1970
1976
2000
1970
2011
2012
2001
2005
1988
1985
2011
1977
2001
1974
1981
2009
1958
2005
1972
2011
2003
1970
2004
1985
1990
2006
1994
2006
2019
2019
2018
2018
1999
1981
2018
1986
1977
2002
1984
1993
1976
1988
2000
1984
2005
1980
1973
1985
1972
2017
2005
1974
1990
1975
1980
2017
1977
1981
1981
1988
1981
1997
1966
1971
1973
1955
1975
1997
Comments