condition	mean	min	max
0 h after light	12.97365	12.0759	13.8714
4 h after light	13.40695	13.2651	13.5488
8 h after light	17.606499999999997	16.688	18.525
4 h after dark	19.245449999999998	18.6015	19.8894
8 h after dark	13.95135	13.2967	14.606
12 h after dark	12.57875	12.4395	12.718