Year	% of GDP
2009	36.9172750923129
2010	37.5075122313243
2011	39.4610586918279
2012	39.0610521671865
2013	38.0081374583072
2014	37.5301457387453
2015	35.4777603400109
2016	34.6993064077654
2017	32.6734901437474
2018	30.6532000608542
2019	31.4728364882472
2020	35.2081498321557
2021	33.9154973629293
2022	31.5235329851815
2023	30.6124515534912