condition	mean	min	max
4 h after light	9.377733333333333	9.21518	9.67188
8 h after light	9.396686666666666	9.29468	9.577119999999999
12 h after light	9.418816666666666	9.34718	9.47367
4 h after dark	9.344646666666666	9.28072	9.423969999999999
8 h after dark	9.16066	9.046619999999999	9.30177
12 h after dark	9.2574	8.972660000000001	9.438360000000001