condition	mean	min	max
4 h after light	53.7	53.7	53.7
8 h after light	69.0	61.8	76.2
12 h after light	75.45	66.9	84.0
4 h after dark	42.85	6.5	79.2
8 h after dark	35.65	2.6	68.7
12 h after dark	15.0	9.6	20.4