condition	mean	min	max
4 h after light	7.182926666666667	7.172060000000001	7.19468
8 h after light	7.301473333333333	7.216189999999999	7.4043399999999995
12 h after light	7.31813	7.290260000000001	7.34103
4 h after dark	7.16071	7.146	7.1766
8 h after dark	7.120183333333333	7.070180000000001	7.188280000000001
12 h after dark	7.169356666666667	7.002460000000001	7.29997