condition	mean	min	max
0 h after light	15.883049999999999	14.8204	16.9457
4 h after light	8.774525	6.68405	10.865
8 h after light	7.81429	5.84994	9.77864
4 h after dark	21.718600000000002	20.166	23.2712
8 h after dark	20.6896	19.7706	21.6086
12 h after dark	16.582250000000002	15.6691	17.4954