condition	mean	min	max
0 h after light	15.569700000000001	15.4974	15.642
4 h after light	20.151400000000002	19.1008	21.202
8 h after light	32.35365	30.5248	34.1825
4 h after dark	30.5041	23.9129	37.0953
8 h after dark	18.75895	17.8442	19.6737
12 h after dark	16.56675	13.8153	19.3182