condition	mean	min	max
4 h after light	8.408603333333334	8.13223	8.64326
8 h after light	8.54314	8.19444	8.73744
12 h after light	8.463619999999999	8.34785	8.60427
4 h after dark	8.70844	8.34253	8.89375
8 h after dark	8.569416666666667	8.14967	8.84556
12 h after dark	8.302933333333334	8.286430000000001	8.31144