Notes to the Consolidated Financial Statements
(Years ended December 31, 2007 and 2006 (In thousands of dollars, except per share amounts)

16.  Earnings per share:

    2007   2006
Net income $ 148,697 $ 131,524
Basic weighted average number of common shares outstanding   67,970,365   68,329,758
Basic earnings per share $ 2.19 $ 1.92
Diluted weighted average number of common shares outstanding   68,464,095   68,998,718
Diluted earnings per share $ 2.17 $ 1.91