SS Projected Income/Cost #1

Another chart for a blog comment at Angry Bear.

The Income/Cost values are calculated from 2006 report Table IV.B1 for combined OASDI. I failed to update to 2008 because I was just looking for a conceptual impact. The magenta line is projected according to Intermediate Cost and the Red is projected according to Low Cost. The idea was to determine what would happen if we chose to limit haw fast we allowed the SS Trust Fund to be used up. The green line is the calculated tax rate required to assure that tax receipts provide a minimum of 85 percent of each years costs. The would start going up in 2025 and would reach 6.7 percent in 2040 (which is the last year IC costs and income are provided).

Notes:
The scale is exagerated since they do not go to zero, but it makes it more readable to match the left and right scales.
I assumed that costs do not change as the tax rate changes because I have only the data from the table, no underlying models.