condition	mean	min	max
4 h after light	13.35865	13.1049	13.6124
8 h after light	14.03795	13.1294	14.9465
12 h after light	19.0887	17.9731	20.2043
4 h after dark	17.0047	16.2798	17.7296
8 h after dark	18.022199999999998	17.8047	18.2397
12 h after dark	17.72175	17.4653	17.9782