1981 January 12, 1981 January 26, 1981 January 30, 1981 February 9, 1981 February 20, 1981 February 23, 1981 March 9, 1981 March 13, 1981 March 23, 1981 April 13, 1981 April 27, 1981 May 11, 1981 June 8, 1981 June 22, 1981 adj June 22, 1981 July 13, 1981 July 27, 1981 August 10, 1981 August 24, 1981 September 14, 1981 September 28, 1981 October 12, 1981 October 26, 1981 November 9, 1981 November 23, 1981 December 14, 1981 December 28, 1981
