condition mean min max 4 h after light 234.070669 76.858646 391.282692 8 h after light 143.96907299999998 126.539749 161.398397 12 h after light 410.3194085 142.147264 678.491553 4 h after dark 2381.5884885 836.858491 3926.318486 8 h after dark 3512.051797 2164.693595 4859.409999 12 h after dark 2622.137512 2622.137512 2622.137512