__Figure 14: NPV Comparison -- Alternate Readily Achievable
%: SH/ RA0, RA50, RA100/ B1991__

The figure shows three S-shaped curves that
compare the likely NPV for different readily achievable barrier removal
assumptions. The *x* axis is labeled "Net Present Value (billions $)" and
the *y* axis is labeled "Probability of Not Exceeding." The three S-shaped
curves are very close together. For RA50, the NPV at 10% probability is $ 4.7
billion, the NPV at 50% probability is $ 7.6 billion, and the NPV at 90%
probability is $ 11.0 billion. For the RA0, the NPV at 10% probability is $
4.9 billion, the NPV at 50% probability is $ 7.6 billion, and the NPV at 90%
probability is $ 11.0 billion. For the RA100, the NPV at 10% probability is $
4.3 billion, the NPV at 50% probability is $ 7.2 billion, and the NPV at 90%
probability is $ 10.6 billion.