July 10, 1969
December 29, 1969
July 7, 1970
August 3, 1970
October 27, 1970
February 6, 1973
November 11, 1973
August 30, 1974
April 16, 1975
October 5, 1976
December 28, 1976
October 4, 1977
June 10, 1978
July 7, 1978
September 21, 1978
November 5, 1978
January 7, 1979
July 13, 1979
September 6, 1980
December 19, 1980
October 8, 1981
March 28, 1982
October 18, 1982
January 19, 1983
May 10, 1984
May 26, 1984
November 20, 1984
December 19, 1984
March 11, 1985
April 26, 1985
May 4, 1985
May 24, 1985
June 19, 1986
July 17, 1986
August 9, 1986
October 25, 1986
October 29, 1987
December 11, 1987
January 13, 1988
February 14, 1988
March 15, 1988
March 20, 1988
May 9, 1988
May 15, 1988
June 21, 1988
July 28, 1988
August 4, 1988
November 18, 1988
December 16, 1988
December 21, 1988
March 7, 1989
September 19, 1989
October 18, 1989
November 28, 1989
March 11, 1990
March 17, 1990
August 16, 1990
September 9, 1990
November 10, 1990
January 27, 1991
March 3, 1991
May 9, 1991
July 13, 1991
August 14, 1991
October 11, 1991
March 24, 1992
June 9, 1992
August 3, 1992
September 9, 1992
September 11, 1992
December 6, 1992
March 18, 1993
May 30, 1993
June 25, 1993
September 17, 1993
September 20, 1994
October 26, 1994
March 34, 1995
April 5, 1995
April 8, 1995
June 25, 1995
July 20, 1995
November 18, 1995
December 27, 1995
April 25, 1996
May 21, 1996
April 4, 1997
August 4, 1997
March 27, 1998
May 13, 1998
June 21, 1998
July 11, 1998
September 9, 1998
September 12, 1998
February 26, 1999
May 6, 1999
August 16, 1999
December 9, 1999
February 23, 2000
April 28, 2000
May 18, 2000
November 23, 2000
January 26, 2001
February 4,2001
June 12, 2001
July 20, 2001
August 19, 2001
November 5, 2001
November 24, 2001
March 16, 2002
April 6, 2002
April 6, 2002
May 23, 2002
August 19, 2002
September 10, 2002
October 6, 2002
October 13, 2002
June 30, 2003
September 13, 2003
September 16, 2003
November 11, 2003
March 8, 2004
April 7, 2004
May 22, 2004
June 25, 2004
August 31, 2004
October 6, 2004
March 6, 2005
March 21, 2005
November 25, 2005
December 22, 2005
January 10, 2006
June 13, 2006
December 8, 2006
January 13, 2007
January 27, 2007
March 11, 2007
November 2, 2007
December 6, 2007
December 12, 2007
April 19, 2008