condition	mean	min	max
4 h after light	65.2	65.2	65.2
8 h after light	47.5	33.6	61.4
12 h after light	60.7	52.9	68.5
4 h after dark	86.3	74.6	98.0
8 h after dark	64.1	51.6	76.6
12 h after dark	66.1	61.5	70.7