Year	U.S. Dollars
2012-01-01	6987200000
2013-01-01	7041500000
2014-01-01	7310600000
2015-01-01	6807900000
2016-01-01	7356500000
2017-01-01	8138600000
2018-01-01	8280200000
2019-01-01	8278700000