NNN incurred stock issuance costs totaling approximately $10,393,000, consisting primarily of underwriters' fees and  commissions, legal and accounting fees and printing expenses. In December 2011, NNN filed a prospectus supplement to the prospectus contained in its February 2009 shelf registration  statement and issued 8,050,000 shares (including 1,050,000 shares in connection with the underwriters' over allotment) of  common stock at a price of $25.75 per share and received net proceeds of $198,228,000. In connection with this offering,  NNN incurred stock issuance costs totaling approximately $9,060,000, consisting primarily of underwriters' fees and  commissions, legal and accounting fees and printing expenses. In May 2012, NNN established an at-the-market (“2012 ATM”) equity program which allows NNN to sell up to an aggregate of  9,000,000 shares of common stock from time to time through May 2015. The following outlines the common stock issuances  pursuant to the 2012 ATM for the year ended December 31 (dollars in thousands, except per share data): In March 2013, NNN established a second ATM equity program ("2013 ATM") which allows NNN to sell up to an aggregate of  9,000,000 shares of common stock from time to time through March 2015. The following table outlines the common stock  issuances pursuant to the 2013 ATM (dollars in thousands, except per share data): Dividend Reinvestment and Stock Purchase Plan.  In February 2012, NNN filed a shelf registration statement with the  Commission for its Dividend Reinvestment and Stock Purchase Plan (“DRIP”) which permits the issuance by NNN of  16,000,000 shares of common stock. The following outlines the common stock issuances pursuant to the DRIP for the years  ended December 31 (dollars in thousands): Effective January 1, 1998, NNN adopted a defined contribution retirement plan (the “Retirement Plan”) covering substantially  all of the employees of NNN. The Retirement Plan permits participants to defer a portion of their compensation, as defined in  the Retirement Plan, subject to limits established by the Code. NNN matches 60 percent of the participants’ contributions up to  a maximum of eight percent of a participant’s annual compensation. NNN’s contributions to the Retirement Plan for the years  ended December 31, 2013, 2012 and 2011 totaled $342,000, $378,000 and $321,000, respectively. Note 12 – Employee Benefit Plan:  65 (1) Stock issuance costs consist primarily of underwriters' fees and commissions, and legal and accounting fees. (1) Stock issuance costs consist primarily of underwriters' fees and commissions, and legal and accounting fees. 2013 2012 Shares of common stock 4,676,542 4,282,298 Average price per share (net) $ 32.60 $ 29.64 Net proceeds 152,435 126,947 Stock issuance costs  (1) 2,161 2,145 2013 Shares of common stock 2,280,450 Average price per share (net) $ 37.80 Net proceeds 86,208 Stock issuance costs  (1) 1,613 2013 2012 2011 Shares of common stock 764,891 2,101,644 3,745,896 Net proceeds $ 25,407 $ 56,102 $ 93,451