condition mean min max 4 h after light 2.349885 2.34346 2.35631 8 h after light 3.61653 3.16445 4.06861 12 h after light 5.470515000000001 4.75736 6.18367 4 h after dark 4.867405 4.22188 5.51293 8 h after dark 5.788145 5.1868 6.38949 12 h after dark 4.743125 4.47976 5.00649