| 3 Months | 1 Year | 5 Years | 10 Years | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (Tx 2006 - 2007) | (Tx 2006 - 2007) | (Tx 2002 - 2007) | (Tx 1997 - 2007) | ||||||||||
| N | % | Std. Err. | N | % | Std. Err. | N | % | Std. Err. | N | % | Std. Err. | ||
| Total | All | 3,291 | 96.8% | 0.3% | 3,291 | 92.3% | 0.5% | 8,790 | 71.5% | 0.7% | 14,123 | 46.6% | 0.7% |
| Yearly Center Volume | 0-12 | 29 | 96.6% | 3.4% | 29 | 89.7% | 5.7% | 64 | 56.5% | 8.4% | 200 | 52.7% | 4.5% |
| 13-28 | 110 | 94.5% | 2.2% | 110 | 90.0% | 2.9% | 410 | 66.1% | 3.7% | 857 | 41.8% | 2.9% | |
| 29-47 | 307 | 97.4% | 0.9% | 307 | 89.3% | 1.8% | 844 | 72.2% | 2.0% | 1,719 | 48.0% | 2.2% | |
| 48-81 | 534 | 97.9% | 0.6% | 534 | 93.6% | 1.1% | 1,744 | 71.3% | 1.5% | 3,037 | 45.1% | 1.6% | |
| 82+ | 2,311 | 96.6% | 0.4% | 2,311 | 92.6% | 0.5% | 5,728 | 71.9% | 0.8% | 8,310 | 47.0% | 0.9% | |