condition	mean	min	max
4 h after light	11.109275	9.21955	12.999
8 h after light	7.12399	6.6414	7.60658
12 h after light	5.005185	4.01227	5.9981
4 h after dark	5.564996666666667	5.19911	6.19065
8 h after dark	12.7028	12.529	13.0407
12 h after dark	11.824553333333334	8.97836	13.3842