| 1997 Q1 2 February | |
| 1997 Q1 1 January | |
| 1997 Q1 3 March | |
| 1997 Q2 4 April | |
| 1997 Q2 6 June | |
| 1997 Q2 5 May | |
| 1997 Q3 8 August | |
| 1997 Q3 7 July | |
| 1997 Q3 9 September | |
| 1997 Q4 12 December | |
| 1997 Q4 11 November | |
| 1997 Q4 10 October | |
| 1998 Q1 2 February | |
| 1998 Q1 1 January | |
| 1998 Q1 3 March | |
| 1998 Q2 4 April | |
| 1998 Q2 6 June | |
| 1998 Q2 5 May | |
| 1998 Q3 8 August | |
| 1998 Q3 7 July | |
| 1998 Q3 9 September | |
| 1998 Q4 12 December | |
| 1998 Q4 11 November | |
| 1998 Q4 10 October |