Year ended december 31 (in $millions) 2006 2005 total sales 610.1 578.3 cost of sales minus−500.2 minus−481.9 gross profit 109.9 96.4 selling, general, and administrative expenses minus−40.5 minus−39.0 research and development minus−24.6 minus−22.8 depreciation and amortization minus−3.6 minus−3.3 operating income 41.2 31.3 other income minus−minus− minus−minus− earnings before interest and taxes (ebit) 41.2 31.3 interest income (expense) minus−25.1 minus−15.8 pretax income 16.1 15.5 taxes minus−5.5 minus−5.3 net income 10.6 10.2 price per share $16 $15 sharing outstanding (millions) 10.210.2 6.66.6 stock options outstanding (millions) 0.20.2 0.30.3 stockholders' equity 126.6 63.6 total liabilities and stockholders' equity 533.1 386.7 refer to the income statement above. for the year ending december 31, 2006 luther's earnings per share is closest to