The following data were taken from recent annual reports of Southwest Airlines, which operates a low-fare airline service to over 50 cities in the U.S.

a. Determine the number of times interest charges were earned for the current and preceding years. Round to one decimal place.
b. What conclusions can youdraw?

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Preceding Current Year Year Interest expense Income before income tax $106,023,000 69,827,000 827,659,000 392,682,000