condition	mean	min	max
0 h after light	2.0311	1.87306	2.18914
4 h after light	7.972195	7.63406	8.31033
8 h after light	19.8843	19.3844	20.3842
4 h after dark	13.5103	10.1577	16.8629
8 h after dark	3.55518	2.45965	4.65071
12 h after dark	2.605805	1.24703	3.96458