condition	mean	min	max
4 h after light	7.211796666666667	7.0638	7.331810000000001
8 h after light	7.213133333333333	7.03487	7.453119999999999
12 h after light	7.43021	7.2157	7.6868300000000005
4 h after dark	7.416343333333334	7.190510000000001	7.71177
8 h after dark	7.285353333333333	7.0396399999999995	7.5252300000000005
12 h after dark	7.079603333333333	6.75899	7.28365