| GRADE | 1997 | 1998 | 1999 | 2000 | 2001 |
| 21-0-0 | 23,747 | 19,746 | 107,433 | ||
| 16-20-0 | 27,000 | 1,996 | 20,774 | 27,599 | 122,114 |
| 18-46-0 | 70,608 | 30,499 | 186,698 | 136 | 34 |
| 14-14-14 | 4,899 | 3,147 | |||
| 15-15-15 | |||||
| 16-16-8 | 359,028 | 382,542 | 135,438 | 190,940 | 100,750 |
| 0-0-50 | 20 | 740 | 3,220 | 5,360 | |
| TOTAL | 456,636 | 438,804 | 368,295 | 329,328 | 231,405 |