Year Percent of GDP 2015-01-01 13.3420 2016-01-01 16.6868 2017-01-01 16.7929 2018-01-01 20.1853 2019-01-01 19.2302 2020-01-01 17.9940 2021-01-01 17.2519 2022-01-01 16.5543 2023-01-01 15.8570