condition mean min max 4 h after light 66.4844 64.0643 68.9045 8 h after light 63.15465 52.2358 74.0735 12 h after light 52.48495 44.9548 60.0151 4 h after dark 77.0141 66.3753 88.4241 8 h after dark 107.6345 98.9325 120.594 12 h after dark 66.48073333333333 56.1269 76.18