Year	Billions of U.S. Dollars
2015-01-01	35600000
2016-01-01	36600000
2017-01-01	39700000
2018-01-01	42900000
2019-01-01	45400000
2020-01-01	48000000
2021-01-01	50600000
2022-01-01	53200000
2023-01-01	55700000