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CAPITAL STOCK | 12 Months Ended
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Dec. 31, 2012
CAPITAL STOCK |
CAPITAL STOCK | NOTE 20 CAPITAL STOCK We have 199 million authorized shares of common stock. The number of shares of common stock and treasury stock and the share activity were as follows:
|  | Common Shares |  | Treasury Shares |
--- | --- | --- | --- | --- | ---
|  | 2012 |  | 2011 |  | 2012 |  | 2011 |
Balance at the beginning of the year |  |  | 82,773,322 |  |  | 81,796,938 |  |  | 16,921,022 |  |  | 15,047,020 |
Employee option exercises |  |  | 1,234,163 |  |  | 933,175 |  |  | (379,453 | ) |  | (196,817 | )
Director option exercises |  |  | 69,833 |  |  | 34,500 |  |  | — |  |  | — |
Restricted stock vestings |  |  | 9,023 |  |  | 8,709 |  |  | — |  |  | — |
Common stock repurchases |  |  | — |  |  | — |  |  | 1,616,433 |  |  | 2,070,819 |
Balance at the end of the year |  |  | 84,086,341 |  |  | 82,773,322 |  |  | 18,158,002 |  |  | 16,921,022 |
The cash dividends paid on the common stock for the years ended December 31, 2012, 2011, and 2010 aggregated $58.4 million, $53.3 million and $44.5 million, respectively.

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