| Cumulative | Cumulative | ||
| Number | Number | Percent | |
| After 1 Year (Summer 2007) | 30 | 30 | 14.2% |
| After 2 Years (Summer 2008) | 15 | 45 | 21.2% |
| After 3 Years (Summer 2009) | 5 | 50 | 23.6% |
| After 4 Years (Summer 2010) | 5 | 55 | 25.9% |
| After 5 Years (Summer 2011) | 11 | 66 | 31.1% |
| After 6 Years (Summer 2012) | 0 | 66 | 31.1% |
| After 7 Years (Summer 2013) | 0 | 66 | 31.1% |
| More than 7 Years (after Summer 2013) | 0 | 66 | 31.1% |
| Total | 66 | ||
| NOTE: Data is through Summer 2011 |
