[The following information applies to the questions displayed below.] Selected comparative financial statements of Korbin Company follow:

KORBIN COMPANY
Comparative Income Statements
For Years Ended December 31, 2017, 2016, and 2015
	2017			2016			2015
Sales	$	431,878		$	330,854		$	229,600
Cost of goods sold		259,991			206,784			146,944
Gross profit		171,887			124,070			82,656
Selling expenses		61,327			45,658			30,307
Administrative expenses		38,869			29,115			19,057
Total expenses		100,196			74,773			49,364
Income before taxes		71,691			49,297			33,292
Income taxes		13,335			10,106			6,758
Net income	$	58,356		$	39,191		$	26,534

KORBIN COMPANY
Comparative Balance Sheets
December 31, 2017, 2016, and 2015
	2017			2016			2015
Assets
Current assets	$	48,822		$	38,197		$	51,061
Long-term investments		0			700			4,070
Plant assets, net		93,516			99,319			59,381
Total assets	$	142,338		$	138,216		$	114,512
Liabilities and Equity
Current liabilities	$	20,781		$	20,594		$	20,040
Common stock		66,000			66,000			48,000
Other paid-in capital		8,250			8,250			5,333
Retained earnings		47,307			43,372			41,139
Total liabilities and equity	$	142,338		$	138,216		$	114,512
Required: 1. calculate each year's current ratio.