condition mean min max 4 h after light 338.761177 218.178017 459.344337 8 h after light 174.2080015 81.2885 267.127503 12 h after light 131.04657600000002 73.926647 188.166505 4 h after dark 68.1062275 28.719089 107.493366 8 h after dark 40.126819499999996 28.463073 51.790566 12 h after dark 412.749043 412.749043 412.749043