Year	U.S. Dollars
2015-01-01	-17518500000
2016-01-01	-16953400000
2017-01-01	-17293100000
2018-01-01	-20673000000
2019-01-01	-21702900000
2020-01-01	-24821200000
2021-01-01	-26268600000
2022-01-01	-28657300000
2023-01-01	-30289600000