condition mean min max 0 h after light 22.954 22.3132 23.5948 4 h after light 8.815760000000001 7.63032 10.0012 8 h after light 6.387734999999999 6.05256 6.72291 4 h after dark 14.3503 13.8112 14.8894 8 h after dark 19.3674 19.122 19.6128 12 h after dark 16.97225 16.3193 17.6252