condition	mean	min	max
4 h after light	14.23515	14.0695	14.4008
8 h after light	14.55475	14.2482	14.8613
12 h after light	15.963550000000001	15.2448	16.6823
4 h after dark	21.23156666666667	20.7722	22.0374
8 h after dark	21.787	20.6701	22.7132
12 h after dark	18.6689	17.8982	19.7559