condition	mean	min	max
4 h after light	7.3833	7.2411	7.480119999999999
8 h after light	7.05058	6.8590800000000005	7.21245
12 h after light	7.219556666666667	7.11932	7.370839999999999
4 h after dark	7.288696666666667	7.111680000000001	7.429689999999999
8 h after dark	7.275033333333334	7.14663	7.394660000000001
12 h after dark	7.444846666666667	7.29143	7.53097