condition	mean	min	max
4 h after light	15.4406	13.5131	17.3681
8 h after light	13.11735	13.0939	13.1408
12 h after light	15.31515	14.2547	16.3756
4 h after dark	19.7344	18.8232	20.6456
8 h after dark	18.447499999999998	18.4403	18.4547
12 h after dark	19.612650000000002	18.7571	20.4682