condition	mean	min	max
4 h after light	7.91065	7.85906	7.986860000000001
8 h after light	8.03824	7.98093	8.14376
12 h after light	8.110536666666667	7.983219999999999	8.27104
4 h after dark	8.867213333333334	8.70354	9.04797
8 h after dark	9.078356666666666	8.89732	9.25941
12 h after dark	9.35425	9.19041	9.47947