condition	mean	min	max
0 h after light	17.2083	16.6897	17.7269
4 h after light	12.9108	12.7942	13.0274
8 h after light	9.601144999999999	9.09379	10.1085
4 h after dark	13.4073	12.8963	13.9183
8 h after dark	17.086100000000002	16.9738	17.1984
12 h after dark	17.834600000000002	13.9502	21.719