Year Percent of GDP in U.S. Dollars 2010-01-01 18.8822 2011-01-01 16.8225 2012-01-01 13.1640 2013-01-01 20.3881 2014-01-01 14.5115 2015-01-01 3.7830 2016-01-01 -10.7404 2017-01-01 -5.6433 2018-01-01 -3.0174 2019-01-01 -4.0039 2020-01-01 -4.8803 2021-01-01 -5.7892 2022-01-01 -6.0450 2023-01-01 -6.5469