| Previous HR/HL Tx | Year | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | |
| Total | 15,593 | 16,402 | 17,067 | 17,673 | 18,063 | 18,428 | 18,944 | 19,473 | 19,308 |
| No | 15,254 | 16,029 | 16,661 | 17,258 | 17,619 | 17,958 | 18,430 | 18,922 | 18,730 |
| Yes | 339 | 373 | 406 | 415 | 444 | 470 | 514 | 551 | 578 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| No | 97.8% | 97.7% | 97.6% | 97.7% | 97.5% | 97.4% | 97.3% | 97.2% | 97.0% |
| Yes | 2.2% | 2.3% | 2.4% | 2.3% | 2.5% | 2.6% | 2.7% | 2.8% | 3.0% |