Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Summary Of Assumptions Granted

A summary of assumptions for options granted in each of the three years 2010 through 2012 is as follows:

	2012			2011			2010
Volatility factor		39.4	%		42.3	%		40.3	%
Dividend yield		1.0	%		1.0	%		1.3	%
Expected term (in years)		5.55			4.66			4.74
Risk-free rate		1.3	%		2.0	%		2.5	%