Year U.S. Dollars 2015-01-01 9001400000 2016-01-01 6996500000 2017-01-01 9369900000 2018-01-01 8673400000 2019-01-01 8850700000 2020-01-01 8746900000 2021-01-01 9225500000 2022-01-01 9843300000 2023-01-01 10630400000