condition	mean	min	max
4 h after light	7.241403333333333	7.065410000000001	7.41553
8 h after light	7.234466666666666	7.07752	7.327189999999999
12 h after light	7.1720299999999995	7.039839999999999	7.375939999999999
4 h after dark	7.51033	7.314539999999999	7.81464
8 h after dark	7.399603333333333	7.078880000000001	7.80536
12 h after dark	7.511376666666667	7.423080000000001	7.66745