condition	mean	min	max
4 h after light	12.85665	11.8594	13.8539
8 h after light	12.4186	12.1215	12.7157
12 h after light	14.2895	13.9082	14.6708
4 h after dark	17.052666666666667	16.5884	17.8892
8 h after dark	18.9069	17.2001	21.3326
12 h after dark	13.533233333333333	12.7229	14.2756