condition	mean	min	max
4 h after light	15.611488000000001	13.341232	17.881744
8 h after light	14.961074	14.749982	15.172166
12 h after light	14.185915999999999	14.004417	14.367415
4 h after dark	13.9231005	13.537514	14.308687
8 h after dark	12.561566	10.755717	14.367415
12 h after dark	16.992437	16.992437	16.992437