condition	mean	min	max
4 h after light	7.2665750000000005	6.10313	8.43002
8 h after light	5.38607	5.34183	5.43031
12 h after light	5.781385	5.2121	6.35067
4 h after dark	8.22735	7.90308	8.5804
8 h after dark	8.343946666666668	8.2659	8.45465
12 h after dark	7.13142	6.59956	8.01202