Year U.S. Dollars 2015-01-01 -574300000 2016-01-01 -618300000 2017-01-01 -478900000 2018-01-01 -499200000 2019-01-01 -446100000 2020-01-01 -438600000 2021-01-01 -283200000 2022-01-01 -104900000 2023-01-01 -168500000