| Previous LI Tx | Year | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | |
| Total | 7,571 | 9,758 | 12,051 | 13,914 | 14,893 | 13,036 | 12,642 | 12,692 | 12,763 | 12,548 |
| No | 7,190 | 9,266 | 11,504 | 13,276 | 14,231 | 12,587 | 12,302 | 12,355 | 12,386 | 12,200 |
| Yes | 381 | 492 | 547 | 638 | 662 | 449 | 340 | 337 | 377 | 348 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| No | 95.0% | 95.0% | 95.5% | 95.4% | 95.6% | 96.6% | 97.3% | 97.3% | 97.0% | 97.2% |
| Yes | 5.0% | 5.0% | 4.5% | 4.6% | 4.4% | 3.4% | 2.7% | 2.7% | 3.0% | 2.8% |