condition	mean	min	max
4 h after light	7.230236666666666	7.10925	7.394589999999999
8 h after light	7.303386666666667	7.10422	7.493130000000001
12 h after light	7.517153333333334	7.230810000000001	7.7553399999999995
4 h after dark	7.60453	7.524039999999999	7.70292
8 h after dark	7.657303333333333	7.606319999999999	7.74672
12 h after dark	7.47961	7.26842	7.62732