condition	mean	min	max
4 h after light	9.791335499999999	9.404861	10.17781
8 h after light	8.5040065	8.434152	8.573861
12 h after light	8.691578	8.684387	8.698769
4 h after dark	7.9376455	7.30143	8.573861
8 h after dark	8.3230825	8.088662	8.557503
12 h after dark	8.47771	8.47771	8.47771