condition	mean	min	max
4 h after light	7.069053333333334	7.023610000000001	7.10225
8 h after light	7.131226666666667	7.05393	7.1951600000000004
12 h after light	6.989603333333333	6.93527	7.08092
4 h after dark	7.180763333333334	7.04558	7.405930000000001
8 h after dark	7.16229	6.9871300000000005	7.32252
12 h after dark	7.1326600000000004	7.07242	7.24688