condition	mean	min	max
4 h after light	7.56005	7.441739999999999	7.7179
8 h after light	7.6818800000000005	7.560160000000001	7.83315
12 h after light	8.639816666666666	8.57972	8.7379
4 h after dark	8.27051	8.12598	8.468060000000001
8 h after dark	7.95294	7.8426800000000005	8.04992
12 h after dark	8.027786666666668	7.98568	8.07563