condition	mean	min	max
4 h after light	50.3	50.3	50.3
8 h after light	94.25	88.9	99.6
12 h after light	56.7	45.5	67.9
4 h after dark	56.2	50.9	61.5
8 h after dark	55.7	55.5	55.9
12 h after dark	53.0	44.4	61.6