| 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 | 13,932 | 98.3% | 0.1% | 13,932 | 95.9% | 0.2% | 38,151 | 83.4% | 0.3% | 66,494 | 63.6% | 0.3% |
| Yearly Center Volume | 0-12 | 179 | 97.8% | 1.1% | 179 | 95.5% | 1.5% | 714 | 88.0% | 1.7% | 2,057 | 67.9% | 1.5% |
| 13-28 | 926 | 97.7% | 0.5% | 926 | 95.5% | 0.7% | 3,121 | 83.4% | 0.9% | 5,944 | 64.5% | 1.1% | |
| 29-47 | 1,623 | 97.3% | 0.4% | 1,623 | 94.9% | 0.5% | 4,318 | 81.5% | 0.8% | 8,574 | 64.4% | 0.9% | |
| 48-81 | 2,813 | 98.5% | 0.2% | 2,813 | 96.1% | 0.4% | 8,092 | 82.6% | 0.6% | 14,711 | 61.9% | 0.7% | |
| 82+ | 8,391 | 98.5% | 0.1% | 8,391 | 96.1% | 0.2% | 21,906 | 83.9% | 0.3% | 35,208 | 63.7% | 0.4% | |