Experienced professional report payment sources
| Payment source(s) | Round I (n) | Round II (n) | Round III (n) |
| Insurance only | 22 | 19 | 19 |
| Private pay only | 50 | 45 | 41 |
| NHS only | 4 | 4 | 2 |
| Military | 2 | 2 | 2 |
| NHS+insurance+private pay | 7 | 7 | 6 |
| Insurance+private pay | 35 | 32 | 27 |
NHS, National Health Service.