condition	mean	min	max
4 h after light	8.014453333333334	7.87915	8.2266
8 h after light	7.935460000000001	7.7742	8.19317
12 h after light	8.06576	7.921939999999999	8.2553
4 h after dark	8.015053333333332	7.7989999999999995	8.30809
8 h after dark	8.049656666666667	7.788539999999999	8.429969999999999
12 h after dark	7.86527	7.725969999999999	8.05832