| Year | Offered | Sold | Aggregate (Gns) | Average (Gns) |
|---|---|---|---|---|
2007 | 3,631 | 2,848 | 43,033,881 | 15,110 |
| 2006 | 3,663 | 2,884 | 38,658,040 | 13,404 |
| 2005 | 3,363 | 2,680 | 32,320,750 | 12,060 |
| 2004 | 3,704 | 2,866 | 34,098,040 | 11,897 |
| 2003 | 3,283 | 2,669 | 25,724,965 | 9,638 |
| 2002 | 3,634 | 2,841 | 21,882,100 | 7,702 |
| 2001 | 3,643 | 2,804 | 19,450,370 | 6,937 |
| 2000 | 3,490 | 2,752 | 20,964,900 | 7,618 |