condition	mean	min	max
4 h after light	17.129548	16.562245	17.696851
8 h after light	14.624105499999999	14.004359	15.243852
12 h after light	14.882301	13.874363	15.890239
4 h after dark	14.943226	12.968974	16.917478
8 h after dark	15.244674499999999	14.519039	15.97031
12 h after dark	21.279936	21.279936	21.279936