condition	mean	min	max
4 h after light	52.8	52.8	52.8
8 h after light	65.45	54.5	76.4
12 h after light	66.25	61.7	70.8
4 h after dark	51.85	9.3	94.4
8 h after dark	73.95	69.7	78.2
12 h after dark	61.75	56.3	67.2