condition	mean	min	max
4 h after light	8.168885	7.16453	9.17324
8 h after light	2.690455	2.49503	2.88588
12 h after light	4.313689999999999	3.74822	4.87916
4 h after dark	15.929866666666667	15.1301	16.6537
8 h after dark	17.571233333333332	16.3172	19.2236
12 h after dark	19.1157	15.3245	23.2643