condition	mean	min	max
4 h after light	17.003033333333335	12.6429	20.7
8 h after light	8.21339	3.13623	12.984
12 h after light	5.496996666666667	2.57317	8.58103
4 h after dark	8.8726	6.35513	10.4287
8 h after dark	9.62729	5.45152	13.695
12 h after dark	11.131936666666666	9.29681	14.0985