condition	mean	min	max
4 h after light	2.79177	2.5289	3.05464
8 h after light	2.447645	2.22655	2.66874
12 h after light	18.70165	17.2945	20.1088
4 h after dark	13.208	11.7654	14.1241
8 h after dark	6.705113333333333	5.61387	7.27827
12 h after dark	2.4196733333333333	1.69314	2.99562