condition	mean	min	max
4 h after light	10.80594	9.92368	11.6882
8 h after light	7.242905	6.90313	7.58268
12 h after light	9.572665	9.57172	9.57361
4 h after dark	17.841766666666665	17.4835	18.4561
8 h after dark	16.98753333333333	16.6896	17.1646
12 h after dark	15.0678	14.4639	15.9072