Tests


 * 1 May 1990
 * 3 May 1990
 * 8 May 1990
 * 10 May 1990
 * 15 May 1990
 * 17 May 1990
 * 22 May 1990
 * 24 May 1990
 * 29 May 1990
 * 31 May 1990
 * 5 June 1990
 * 7 June 1990
 * 12 June 1990
 * 19 June 1990
 * 21 June 1990
 * 26 June 1990
 * 28 June 1990
 * 3 July 1990
 * 5 July 1990
 * 10 July 1990
 * 12 July 1990
 * 17 July 1990
 * 19 July 1990
 * 24 July 1990
 * 26 July 1990
 * 31 July 1990
 * 2 August 1990
 * 7 August 1990
 * 9 August 1990
 * 16 August 1990
 * 21 August 1990
 * 23 August 1990
 * 28 August 1990
 * 4 September 1990
 * 6 September 1990
 * 11 September 1990
 * 18 September 1990
 * 20 September 1990
 * 25 September 1990
 * 27 September 1990
 * 2 October 1990
 * 4 October 1990
 * 11 October 1990
 * 16 October 1990
 * 18 October 1990
 * 23 October 1990
 * 25 October 1990
 * 1 November 1990
 * 6 November 1990
 * 8 November 1990
 * 15 November 1990
 * 20 November 1990
 * 22 November 1990
 * 27 November 1990
 * 29 November 1990
 * 4 December 1990
 * 6 December 1990
 * 11 December 1990
 * 13 December 1990
 * 18 December 1990
 * 20 December 1990
 * 25 December 1990
 * 27 December 1990
 * 1 January 1991
 * 3 January 1991
 * 8 January 1991
 * 10 January 1991
 * 15 January 1991
 * 17 January 1991
 * 22 January 1991
 * 24 January 1991
 * 29 January 1991
 * 31 January 1991
 * 5 February 1991
 * 7 February 1991
 * 7 March 1991
 * 19 March 1991
 * 21 March 1991
 * 26 March 1991
 * 14 May 1991
 * 25 June 1991
 * 13 August 1991
 * 20 August 1991
 * 29 August 1991
 * 3 September 1991
 * 10 September 1991
 * 12 September 1991
 * 24 September 1991
 * 26 September 1991
 * 1 October 1991
 * 29 October 1991
 * 31 October 1991
 * 3 December 1991
 * 12 December 1991
 * 30 January 1992
 * 11 February 1992
 * 13 February 1992
 * 20 February 1992
 * 7 April 1992
 * 9 April 1992
 * 14 April 1992
 * 21 April 1992
 * 23 April 1992
 * 23 June 1992
 * 25 June 1992
 * 2 July 1992
 * 7 July 1992
 * 16 July 1992
 * 4 August 1992
 * 20 August 1992
 * 11 May 1993
 * 11 April 1994
 * 12 April 1994
 * 14 April 1994
 * 4 August 1994
 * 24 October 1994
 * 7 November 1994
 * 25 December 1995
 * 25 December 1995
 * 10 April 1998
 * 31 December 1999
 * 5 April 2001
 * 29 September 2003
 * 30 September 2003
 * 2 October 2003
 * 3 October 2003
 * 12 December 2003
 * 18 February 2005
 * 31 January 2008
 * 1 October 2009
 * 9 September 2010
 * 10 September 2010
 * 31 December 2010
 * 24 May 2011
 * 23 July 2012
 * 23 July 2012
 * 19 February 2015
 * 19 February 2015
 * 20 February 2015