Year U.S. Dollars 2015-01-01 773800000 2016-01-01 798200000 2017-01-01 869700000 2018-01-01 956900000 2019-01-01 1023800000 2020-01-01 1089600000 2021-01-01 1159500000 2022-01-01 1234000000 2023-01-01 1313200000