condition	mean	min	max
4 h after light	8.48075	8.35098	8.61282
8 h after light	8.73329	8.44696	8.94236
12 h after light	8.460833333333333	8.35384	8.52929
4 h after dark	8.24003	8.19185	8.331710000000001
8 h after dark	8.115636666666667	7.86724	8.30198
12 h after dark	7.867013333333333	7.831689999999999	7.9138