1983 June 7 1984 November 21 1986 December 2 1986 December 4 1992 October 31 1992 November 2 1993 January 8 1994 December 2 1996 May 17 1996 June 27 1997 July 1 1998 October 18 1999 April 22 1999 August 7 2000 May 15 2002 September 7 2003 September 18 2013 September 14