condition	mean	min	max
4 h after light	18.826413333333335	17.70587	20.44911
8 h after light	5.06817	4.224021	5.683053
12 h after light	7.899744	5.038716	9.440135
16 h after light	11.57619	10.07894	14.4775
4 h after dark	21.560156666666668	21.0787	22.203789999999998
8 h after dark	13.615933333333334	11.70448	14.61171