| Previous LI Tx | Year | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | |
| Total | 4,689 | 6,285 | 7,579 | 9,765 | 12,058 | 13,927 | 14,915 | 13,052 | 12,666 | 12,744 |
| No | 4,439 | 5,956 | 7,200 | 9,276 | 11,511 | 13,293 | 14,258 | 12,607 | 12,335 | 12,412 |
| Yes | 250 | 329 | 379 | 489 | 547 | 634 | 657 | 445 | 331 | 332 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| No | 94.7% | 94.8% | 95.0% | 95.0% | 95.5% | 95.4% | 95.6% | 96.6% | 97.4% | 97.4% |
| Yes | 5.3% | 5.2% | 5.0% | 5.0% | 4.5% | 4.6% | 4.4% | 3.4% | 2.6% | 2.6% |