| 2001 | 2000 | 1999 | 1998 |
|---|---|---|---|
|
January 13 March 10 June 8 August 11 October 17 December 1 |
March 4 June 9 August 12 October 4 |
March 13 June 25-6 August 21 August 31 October 6 December 4 |
October 10 December 5/12 |