condition	mean	min	max
4 h after light	7.473066666666666	7.18727	7.681589999999999
8 h after light	7.723163333333333	7.427289999999999	8.035919999999999
12 h after light	8.171266666666666	7.9816199999999995	8.295760000000001
4 h after dark	7.90369	7.7528	8.03195
8 h after dark	7.79607	7.515810000000001	8.06071
12 h after dark	7.4992	7.28063	7.7308