Approach | Maximum (secs) | Minimum (secs) | Range (secs) | Mean (secs) | Median (secs) | Skewness |
Northern | 72 | 2 | 70 | 23 | 20.5 | 1 |
Southern | 65 | 3 | 62 | 20 | 16 | 1.5 |
Eastern | 62 | 2 | 60 | 20 | 15 | 1 |
Western | 61 | 4 | 57 | 25 | 23 | 0.4 |
All | 72 | 2 | 70 | 22 | 19 | 0.9 |