Year	% of GDP
2005	15.303343835780435
2006	15.921664442753988
2007	19.99391667885609
2008	17.831642744236373
2009	16.686836211651205
2010	17.67831469860899
2011	17.9207836994309
2012	17.892507180253084
2013	17.71142919079115
2014	19.70946019760466
2015	19.67780060908739
2016	19.4205147062673
2017	19.34657083591637
2018	20.063593002329107
2019	20.542064484824845
2020	18.843879698907855
2021	19.416319914173176
2022	19.87682388054624