condition	mean	min	max
4 h after light	4.24006	4.16378	4.29796
8 h after light	4.30328	4.27199	4.33544
12 h after light	4.24087	4.14651	4.38321
4 h after dark	4.320216666666667	4.24305	4.41806
8 h after dark	4.25848	4.16754	4.3667300000000004
12 h after dark	4.2787033333333335	4.19839	4.32447