| 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 | 11,604 | 99.3% | 0.1% | 11,604 | 98.2% | 0.1% | 34,235 | 90.6% | 0.2% | 54,408 | 77.0% | 0.3% |
| Yearly Center Volume | 0-12 | 135 | 99.3% | 0.7% | 135 | 99.3% | 0.7% | 631 | 94.7% | 1.2% | 1,657 | 80.8% | 1.4% |
| 13-28 | 539 | 99.6% | 0.3% | 539 | 99.1% | 0.4% | 2,059 | 91.0% | 0.8% | 3,985 | 80.1% | 1.1% | |
| 29-47 | 1,075 | 99.0% | 0.3% | 1,075 | 98.4% | 0.4% | 2,974 | 89.2% | 0.8% | 5,610 | 73.9% | 1.1% | |
| 48-81 | 2,004 | 99.3% | 0.2% | 2,004 | 98.2% | 0.3% | 6,788 | 90.5% | 0.5% | 12,397 | 76.9% | 0.7% | |
| 82+ | 7,851 | 99.4% | 0.1% | 7,851 | 98.1% | 0.2% | 21,783 | 90.6% | 0.3% | 30,759 | 76.9% | 0.4% | |