| 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 | 16,245 | 95.7% | 0.2% | 16,245 | 91.6% | 0.2% | 44,594 | 70.6% | 0.3% | 77,783 | 44.9% | 0.3% |
| Yearly Center Volume | 0-12 | 194 | 95.4% | 1.5% | 194 | 91.2% | 2.0% | 812 | 68.9% | 2.4% | 2,364 | 42.3% | 1.7% |
| 13-28 | 1,042 | 94.8% | 0.7% | 1,042 | 90.4% | 0.9% | 3,532 | 69.9% | 1.1% | 6,815 | 44.8% | 1.1% | |
| 29-47 | 1,862 | 95.3% | 0.5% | 1,862 | 91.2% | 0.7% | 4,974 | 69.2% | 0.9% | 9,891 | 47.0% | 0.9% | |
| 48-81 | 3,310 | 96.4% | 0.3% | 3,310 | 92.5% | 0.5% | 9,438 | 71.1% | 0.6% | 17,329 | 44.2% | 0.6% | |
| 82+ | 9,837 | 95.6% | 0.2% | 9,837 | 91.5% | 0.3% | 25,838 | 70.8% | 0.4% | 41,384 | 44.9% | 0.4% | |