| Recipient Residency | Year | |||||||||
| 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | |
| Total | 10,141 | 12,216 | 14,427 | 16,536 | 18,614 | 20,915 | 23,162 | 25,376 | 26,692 | 31,195 |
| U.S. Resident | 9,699 | 11,798 | 14,022 | 16,144 | 18,244 | 20,551 | 22,820 | 25,071 | 26,421 | 30,909 |
| Unknown | 442 | 418 | 405 | 392 | 370 | 364 | 342 | 305 | 271 | 286 |
| Total (%) | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% | 100.0% |
| U.S. Resident | 95.6% | 96.6% | 97.2% | 97.6% | 98.0% | 98.3% | 98.5% | 98.8% | 99.0% | 99.1% |
| Unknown | 4.4% | 3.4% | 2.8% | 2.4% | 2.0% | 1.7% | 1.5% | 1.2% | 1.0% | 0.9% |