| Station | N | Mean (%) | Std Dev | Median | Min. | Maxi. | Lower 95% CL for mean | Upper 95% CL for mean |
| ST1 | 63 | 62.7 | 28.8 | 69.4 | 10.8 | 127.6 | 55.5 | 70.0 |
| ST2 | 61 | 92.0 | 26.0 | 93.1 | 46.9 | 189.3 | 85.4 | 98.7 |
| ST3 | 63 | 95.8 | 29.8 | 94.7 | 44.1 | 193.1 | 88.3 | 103.3 |
| ST4 | 64 | 97.2 | 28.4 | 97.8 | 44.8 | 183.4 | 90.1 | 104.3 |
| ST5 | 66 | 96.5 | 29.2 | 99.4 | 17.2 | 204.4 | 89.3 | 103.6 |