2.13. Using the following amounts (in thousands) reported in Zebra Technologies consolidated balance sheets and statements of income at December 31, 2013 and 2012, and the valuation schedule, analyze the accounts receivable and allowance accounts for all years.

2013 2012 $1,038,159 $996,168 Net Sales Accounts receivable, net of allowances for doubtful accounts of $453 in 2013 and $669 in 2012 $ 176,917 $168,732 Schedule IIValuation and Qualifying Accounts Years Ended December 31, 2013 and 2012 Balance at Beginning Charged to Costs and Expenses Balance at End of Period Deductions 2013 $ 669 $373 $589 $ 453 2012 $1,560 $ 0 $891 $ 669 Allowance for doubtful accounts Allowance for doubtful accounts Allowance for doubtful accounts 2011 $1,459 $343 $242 $1,560