Shamrock Gas Inc., an oil and gas company had the following information on its financial statements for the fiscal years ended December 31. All figures are in millions of dollars.

		2021		2020		2019			2018
Total assets		$8,942		$5,703		$3,015			$2,616
Total liabilities		5,931		2,580		1,998			1,541
Profit		1,362		449		30			284
Interest expense		116		75		67			54
Income tax expense (recovery)		567		208		(21)			177

1) Calculate Shamrocks (Round answers to 1 decimal place, e.g. 52.7 or 52.7%.)

(1)		Debt to total assets ratio for 2018 through 2021
(2)		Interest coverage ratio for 2018 through 2021

				2021				2020				2019				2018
(1)		Debt to total assets ratio				%				%				%				%
(2)		Interest coverage ratio				times				times				times				times