condition	mean	min	max
4 h after light	8.94258	8.3003	9.58486
8 h after light	10.85002	9.85694	11.8431
12 h after light	13.62565	13.1032	14.1481
4 h after dark	15.279	13.8214	16.7366
8 h after dark	7.82602	6.95295	8.69909
12 h after dark	7.91345	7.29679	8.53011