condition	mean	min	max
4 h after light	9.658503333333332	9.399339999999999	9.87439
8 h after light	8.476663333333335	8.34256	8.55752
12 h after light	7.904163333333334	7.80628	8.0592
4 h after dark	7.420946666666667	7.139889999999999	7.586930000000001
8 h after dark	8.05518	7.8338	8.43005
12 h after dark	9.56711	9.42955	9.81321