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CONSOLIDATED BALANCE SHEETS (Parenthetical)	Mar. 31, 2012	Dec. 31, 2011
CONSOLIDATED BALANCE SHEETS
Common shares, shares issued	304,884,241	306,371,032
Common shares, shares outstanding	304,884,241	306,371,032

Total number of shares of common stock held by shareholders. May be all or portion of the number of common shares authorized. These shares represent the ownership interest of the common shareholders. Shares outstanding equals shares issued minus shares held in treasury and other adjustments, if any.

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