text: Income Tax Expense (2014 vs. 2013) 
  The increase in the effective tax rate for 2014 compared with 2013 was primarily due to tax adjustments associated with a reassessment of 
  our deferred tax assets related to acquisitions. 
  
  Income Tax Expense (2013 vs. 2012) 
  The increase in the effective tax rate for 2013 compared with 2012 was primarily due to changes in our estimated state tax reserves. 
  
  **Fourth Quarter Results**
  The following are our results for the fourth quarters of 2014 and 2013: 