condition	mean	min	max
4 h after light	8.696333333333333	8.464369999999999	8.92157
8 h after light	8.23746	8.104519999999999	8.37696
12 h after light	7.79644	7.67157	8.02705
4 h after dark	8.328946666666667	8.09577	8.51957
8 h after dark	8.630263333333334	8.40868	9.02245
12 h after dark	9.018026666666668	8.9047	9.17897