condition	mean	min	max
0 h after light	8.133040000000001	7.95332	8.31276
4 h after light	10.4435	10.0377	10.8493
8 h after light	14.82595	13.5838	16.0681
4 h after dark	14.84215	13.9063	15.778
8 h after dark	12.18675	10.5751	13.7984
12 h after dark	7.56231	7.36883	7.75579