Year U.S. Dollars 2010-01-01 40284600000 2011-01-01 47962300000 2012-01-01 51265700000 2013-01-01 57531300000 2014-01-01 57235800000 2015-01-01 53274600000 2016-01-01 52419600000 2017-01-01 58414800000 2018-01-01 63370200000 2019-01-01 66749200000 2020-01-01 70497300000 2021-01-01 74183300000 2022-01-01 78157900000 2023-01-01 82358600000