condition	mean	min	max
4 h after light	20.141883999999997	18.024872	22.258896
8 h after light	21.701827	21.580646	21.823008
12 h after light	14.9814615	14.191851	15.771072
4 h after dark	15.382225	15.374591	15.389859
8 h after dark	12.625309999999999	11.657154	13.593466
12 h after dark	19.077472	19.077472	19.077472