condition	mean	min	max
4 h after light	6.7	6.7	6.7
8 h after light	22.25	3.5	41.0
12 h after light	66.45	53.5	79.4
4 h after dark	69.45	48.4	90.5
8 h after dark	61.25	59.1	63.4
12 h after dark	53.0	42.4	63.6