condition mean min max 4 h after light 40.1183595 36.554089 43.68263 8 h after light 36.819077500000006 35.305514 38.332641 12 h after light 31.230879 29.025628 33.43613 4 h after dark 40.448207499999995 34.894239 46.002176 8 h after dark 30.970363499999998 30.186583 31.754144 12 h after dark 28.963601 28.963601 28.963601