Year U.S. Dollars 2015-01-01 13200000 2016-01-01 10500000 2017-01-01 11800000 2018-01-01 10700000 2019-01-01 10600000 2020-01-01 10600000 2021-01-01 10800000 2022-01-01 11200000 2023-01-01 11600000