condition	mean	min	max
4 h after light	17.9275825	15.581808	20.273357
8 h after light	15.9472685	15.049389	16.845148
12 h after light	15.521089	14.505358	16.53682
4 h after dark	15.1539325	14.330983	15.976882
8 h after dark	14.141345000000001	12.615214	15.667476
12 h after dark	21.326217	21.326217	21.326217