condition	mean	min	max
4 h after light	8.5085065	7.861653	9.15536
8 h after light	8.848725	8.818392	8.879058
12 h after light	9.1361925	8.747875	9.52451
4 h after dark	9.3244805	8.901485	9.747476
8 h after dark	9.350214000000001	8.674021	10.026407
12 h after dark	8.388492	8.388492	8.388492