condition	mean	min	max
0 h after light	19.24325	16.4774	22.0091
4 h after light	15.84065	14.892	16.7893
8 h after light	13.04308	9.78426	16.3019
4 h after dark	18.2431	17.5315	18.9547
8 h after dark	12.90435	12.1712	13.6375
12 h after dark	16.231299999999997	12.3415	20.1211