condition	mean	min	max
0 h after light	8.585374999999999	8.32145	8.8493
4 h after light	5.312139999999999	4.56558	6.0587
8 h after light	5.075855	2.93218	7.21953
4 h after dark	19.45725	15.9051	23.0094
8 h after dark	9.02029	8.77326	9.26732
12 h after dark	6.3972	4.60261	8.19179