condition	mean	min	max
4 h after light	8.85789	8.75935	8.94005
8 h after light	9.459846666666667	9.2926	9.634960000000001
12 h after light	9.52595	9.40654	9.76123
4 h after dark	9.08411	9.01792	9.12316
8 h after dark	8.87315	8.79536	8.95832
12 h after dark	9.061376666666666	8.89368	9.15397