| 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 | 16,751 | 96.0% | 0.2% | 16,751 | 92.2% | 0.2% | 46,003 | 71.7% | 0.3% | 79,552 | 46.0% | 0.3% |
| Yearly Center Volume | 0-12 | 306 | 96.7% | 1.0% | 306 | 95.1% | 1.2% | 865 | 70.5% | 2.3% | 2,111 | 43.7% | 1.9% |
| 13-28 | 1,031 | 95.5% | 0.6% | 1,031 | 91.5% | 0.9% | 3,087 | 69.4% | 1.2% | 6,089 | 46.0% | 1.1% | |
| 29-47 | 1,777 | 95.7% | 0.5% | 1,777 | 91.2% | 0.7% | 5,199 | 71.1% | 0.8% | 10,961 | 47.4% | 0.8% | |
| 48-81 | 2,953 | 96.5% | 0.3% | 2,953 | 93.1% | 0.5% | 10,004 | 73.2% | 0.6% | 17,326 | 45.4% | 0.7% | |
| 82+ | 10,684 | 95.9% | 0.2% | 10,684 | 92.1% | 0.3% | 26,848 | 71.5% | 0.4% | 43,065 | 46.0% | 0.4% | |