condition	mean	min	max
4 h after light	15.25082	8.66926	22.3478
8 h after light	9.908533333333333	2.2434	19.3678
12 h after light	9.32067	5.21637	13.8601
4 h after dark	12.82188	8.45834	16.5627
8 h after dark	14.349016666666667	9.21015	18.1457
12 h after dark	17.9347	15.4637	22.6678