| 2002 | |||
| January | |||
| March | |||
| 2001 | |||
| February | August | ||
| March | October | ||
| May | |||
| 2000 | |||
| January | August | ||
| February | September | ||
| March/April | October | ||
| May | November | ||
| June | December | ||
| July | |||
| 1999 | |||
| January | August | ||
| March | September | ||
| April | October | ||
| May | November | ||
| June | December | ||
| 1998 | |||
| January | September | ||
| March | October | ||
| April | November | ||
| May | December | ||
| June | |||
| 1997 | |||
| February | August | ||
| March | October | ||
| April | November | ||
| May | December | ||
| June | |||
| 1996 | |||
| April | October | ||
| June | November | ||
| September | December | ||