Year Percent of GDP 2015-01-01 4.2039 2016-01-01 3.2576 2017-01-01 3.5959 2018-01-01 3.1904 2019-01-01 3.1179 2020-01-01 3.0559 2021-01-01 3.0502 2022-01-01 3.1164 2023-01-01 3.1956