The following information is from the annual financial statements of Raheem Company. Compute its accounts receivable turnover for 2014 and 2015. Compare the two years' results and give a possible explanation for any change (competitors average a turnover of 11).

	2015	2014	2013
Net sales	$405,140	$335,280	$388,000
Accounts receivable, net (year-end)	44,800	41,400	34,800