condition	mean	min	max
4 h after light	2.694215	2.238	3.15043
8 h after light	4.76961	4.32562	5.2136
12 h after light	66.13495	62.8953	69.3746
4 h after dark	28.19386666666667	26.7747	28.9066
8 h after dark	17.64003333333333	16.8643	19.0099
12 h after dark	10.14211	8.31273	11.2487