condition mean min max 4 h after light 2135.938662 1750.568344 2521.30898 8 h after light 1492.8728375 1141.051042 1844.694633 12 h after light 1659.0579200000002 1149.573153 2168.542687 4 h after dark 2058.4070655 1807.123392 2309.690739 8 h after dark 1445.348062 905.233298 1985.462826 12 h after dark 3726.881863 3726.881863 3726.881863