condition	mean	min	max
4 h after light	7.324073333333333	7.28622	7.348
8 h after light	7.27538	7.034669999999999	7.414560000000001
12 h after light	7.4994	7.4291100000000005	7.545039999999999
4 h after dark	7.330056666666667	7.27487	7.38095
8 h after dark	7.24834	7.17692	7.30448
12 h after dark	7.365353333333333	7.33747	7.41132