Number of Pages of Federal Tax Regulation From 1913-2011

Seems as if spending has not only dramatically increased over time, but also the amount of federal regulations businesses have to comply which has increased exponentially. In 1913, there were only 400 pages of federal regulations to comply with. This year there are over 72,000 pages of federal regulations to comply with. Increasing the amount of regulations is a tax increase for businesses which pass along the costs to consumers. I wonder how many pages of regulations would equate just one percentage point in a tax hike.