| Location | Month | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | Total |
|---|---|---|---|---|---|---|---|---|
| WHPE1 | 1 | 9.1% | 10.0% | 9.5% | ||||
| WHPE1 | 2 | 0.0% | 0.0% | 0.0% | ||||
| WHPE1 | 3 | 0.0% | 0.0% | 0.0% | ||||
| WHPE1 | 4 | 20.0% | 20.0% | |||||
| WHPE1 | 5 | 33.3% | 50.0% | 46.2% | ||||
| WHPE1 | 6 | 33.3% | 88.9% | 75.0% | ||||
| WHPE1 | 7 | 100.0% | 10.0% | 18.2% | ||||
| WHPE1 | 8 | 80.0% | 100.0% | 33.3% | 70.0% | |||
| WHPE1 | 9 | 0.0% | 25.0% | 30.0% | 26.3% | |||
| WHPE1 | 10 | 37.5% | 37.5% | 0.0% | 23.1% | |||
| WHPE1 | 11 | 0.0% | 25.0% | 20.0% | 14.8% | |||
| WHPE1 | 12 | 0.0% | 10.0% | 0.0% | 3.4% |