Year	% of GDP
1996	12.089676234700026
1997	18.283106098200342
1998	18.080240838937208
1999	15.057353966877878
2000	14.725749611818253
2001	12.171200309308475
2002	12.881354369228607
2003	14.672870125638148
2004	16.357392607392608
2005	18.48533942420057
2006	19.57121151182017
2007	20.566535654126895
2008	20.44594895267156
2009	17.685313321309355
2010	15.16064072296947
2011	15.240327222996106
2012	15.595346340688357
2013	15.469636001973807
2014	16.82879915308947
2015	16.29096808704749
2016	16.430118320466715
2017	17.727390431331383
2018	18.014083738484047
2019	17.656290127877014
2020	17.90989848949549
2021	18.388116366934646
2022	18.94036457405565