condition mean min max 4 h after light 11.14222 9.41694 12.8675 8 h after light 13.4117 13.1499 13.6735 12 h after light 15.44435 14.4302 16.4585 4 h after dark 14.099466666666666 11.9403 15.5919 8 h after dark 14.994133333333334 14.1689 15.8 12 h after dark 13.7737 12.4196 15.5404