| 3 Months | 1 Year | 5 Years | 10 Years | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (Tx 2005 - 2006) | (Tx 2005 - 2006) | (Tx 2001 - 2006) | (Tx 1996 - 2006) | ||||||||||
| N | % | Std. Err. | N | % | Std. Err. | N | % | Std. Err. | N | % | Std. Err. | ||
| Total | All | 4,206 | 92.2% | 0.4% | 4,206 | 87.2% | 0.5% | 12,466 | 72.8% | 0.5% | 23,619 | 53.4% | 0.5% |
| Yearly Center Volume | 0-5 | 128 | 88.3% | 2.8% | 128 | 80.5% | 3.5% | 715 | 67.5% | 2.1% | 1,490 | 49.0% | 2.0% |
| 6-10 | 543 | 90.4% | 1.3% | 543 | 85.3% | 1.5% | 1,561 | 70.4% | 1.4% | 2,840 | 50.7% | 1.4% | |
| 11-16 | 915 | 92.8% | 0.9% | 915 | 88.2% | 1.1% | 2,611 | 70.6% | 1.1% | 4,094 | 52.0% | 1.2% | |
| 17-24 | 731 | 93.2% | 0.9% | 731 | 88.4% | 1.2% | 1,720 | 75.6% | 1.3% | 4,715 | 57.4% | 1.0% | |
| 25+ | 1,889 | 92.3% | 0.6% | 1,889 | 87.3% | 0.8% | 5,859 | 74.2% | 0.7% | 10,480 | 53.5% | 0.8% | |