The following information (in millions) was taken from the December 31 financial statements of Canadian National Railway Company (CN): 2017 $1,000 16 2018 $1.195 26 1,169 14,321 2,728 3,500 Accounts receivable, gross Allowance for doubtful accounts Accounts receivable, net Revenues Total current assets Total current liabilities 984 2016 $903 28 875 12,037 2.107 3,008 13,041 2.190 3,983 (a) For 2018 and 2017 calculate CN's current ratio, receivables turnover, and average collection period. (Round answers to 1 decimal place, e.g. 5.2.) 2018 2017 1 .1 Current ratio times times Receivables turnover days days Average collection period