Year U.S. Dollars 2015-01-01 10262700000 2016-01-01 12710700000 2017-01-01 10276500000 2018-01-01 11362000000 2019-01-01 12476700000 2020-01-01 13636700000 2021-01-01 14726300000 2022-01-01 16219900000 2023-01-01 17139000000