| 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 | 10,533 | 93.7% | 0.2% | 10,533 | 87.1% | 0.3% | 28,428 | 73.3% | 0.3% | 47,082 | 59.5% | 0.4% |
| Yearly Center Volume | 0-9 | 174 | 94.8% | 1.7% | 174 | 91.4% | 2.1% | 606 | 70.8% | 2.3% | 1,826 | 62.2% | 1.6% |
| 10-19 | 402 | 92.0% | 1.4% | 402 | 87.8% | 1.6% | 1,364 | 75.1% | 1.5% | 2,444 | 63.6% | 1.6% | |
| 20-34 | 812 | 93.6% | 0.9% | 812 | 88.4% | 1.1% | 3,505 | 73.4% | 1.0% | 6,565 | 57.5% | 1.0% | |
| 35-56 | 1,870 | 93.2% | 0.6% | 1,870 | 86.5% | 0.8% | 4,523 | 71.1% | 0.8% | 9,571 | 59.3% | 0.8% | |
| 57+ | 7,275 | 93.9% | 0.3% | 7,275 | 87.0% | 0.4% | 18,430 | 73.8% | 0.4% | 26,676 | 59.5% | 0.5% | |