Set forth below is a line graph comparing the cumulative total stockholder return on NNN’s common stock, based on the  market price of the common stock and assuming reinvestment of dividends, with the FTSE National Association of Real Estate  Investment Trusts Equity Index (“NAREIT”) and the S&P 500 Index (“S&P”) for the fifteen year period commencing  December 31, 1998 and ending December 31, 2013. The graph assumes an investment of $100 on December 31, 1998. Comparison to Fifteen-Year Cumulative Total Return  16