condition	mean	min	max
4 h after light	14.32395	13.5864	15.0615
8 h after light	13.64025	12.826	14.4545
12 h after light	16.18235	15.6407	16.724
4 h after dark	15.15295	14.6941	15.6118
8 h after dark	19.896549999999998	19.3077	20.4854
12 h after dark	21.475	20.2347	22.7153