Year U.S. Dollars 2015-01-01 -5531400000 2016-01-01 -4171300000 2017-01-01 -5489200000 2018-01-01 -5813000000 2019-01-01 -7099100000 2020-01-01 -7043600000 2021-01-01 -7033100000 2022-01-01 -7617100000 2023-01-01 -8292800000