condition mean min max 4 h after light 17.284399999999998 14.7408 19.828 8 h after light 10.36625 10.2789 10.4536 12 h after light 16.5744 15.2452 17.9036 4 h after dark 41.944 39.1961 47.1182 8 h after dark 34.3297 30.0481 38.2921 12 h after dark 22.841633333333334 17.822 28.4232