Balance sheet and income statement data indicate the following:

Bonds payable, 6% (issued 2000, due 2020) $1,200,000

Preferred 8% stock, $100 par

(no change during the year) 200,000

Common stock, $50 par

(no change during the year) 1,000,000

Income before income tax for year 340,000

Income tax for year 80,000

Common dividends paid 60,000

Preferred dividends paid 16,000

Based on the data presented above, what is the number of times bond interest charges were earned (round to two decimal places)?