condition	mean	min	max
4 h after light	20.874850000000002	20.7969	20.9528
8 h after light	23.483449999999998	22.8689	24.098
12 h after light	29.24745	27.9828	30.5121
4 h after dark	39.56405	39.0366	40.0915
8 h after dark	41.20245	39.6209	42.784
12 h after dark	33.25555	31.4926	35.0185