condition	mean	min	max
4 h after light	5.4759150000000005	5.3575	5.59433
8 h after light	5.62995	5.47694	5.78296
12 h after light	7.008905	6.88465	7.13316
4 h after dark	8.16006	8.04758	8.27254
8 h after dark	7.46289	7.20597	7.71981
12 h after dark	7.451409999999999	7.19497	7.70785