condition	mean	min	max
4 h after light	7.464336666666667	7.37177	7.52986
8 h after light	7.540116666666667	7.46777	7.58105
12 h after light	7.62295	7.3617300000000006	7.831910000000001
4 h after dark	7.811543333333334	7.641369999999999	7.97308
8 h after dark	7.54615	7.44871	7.65205
12 h after dark	7.33609	7.21162	7.46714