2013 | 2012 | 2011 | ||||||
Statutory U.S. federal income tax rate | 35.0 | % | 35.0 | % | 35.0 | % | ||
State income taxes, net of related federal income tax benefit | 1.3 | 1.6 | 1.4 | |||||
Benefits and taxes related to foreign operations | (4.0 | ) | (4.1 | ) | (4.7 | ) | ||
Other, net | (0.4 | ) | (0.1 | ) | (0.4 | ) | ||
Effective income tax rates | 31.9 | % | 32.4 | % | 31.3 | % |