| 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 | 4 | 100.0% | 0.0% | 4 | 100.0% | 0.0% | 65 | 53.7% | 7.7% | 172 | 42.1% | 4.2% |
| Yearly Center Volume | 0-3 | 0 | - | - | 0 | - | - | 19 | 63.2% | 13.0% | 42 | 53.3% | 9.1% |
| 4-6 | 1 | 100.0% | 0.0% | 1 | 100.0% | 0.0% | 0 | - | - | 2 | 0.0% | 0.0% | |
| 7-11 | 1 | 100.0% | 0.0% | 1 | 100.0% | 0.0% | 8 | 0.0% | 0.0% | 17 | 58.1% | 14.2% | |
| 12-20 | 0 | - | - | 0 | - | - | 6 | 33.3% | 19.2% | 89 | 36.7% | 5.4% | |
| 21+ | 2 | 100.0% | 0.0% | 2 | 100.0% | 0.0% | 32 | 53.5% | 10.8% | 22 | + | + | |