Year	% of GDP
1990	20.588653014022672
1991	16.67600146920127
1992	48.706011164578605
1993	32.448726236241235
1994	28.23295244717977
1995	27.648510032834317
1996	26.163213143397556
1997	26.454941195622432
1998	27.247717282830475
1999	29.340608722676414
2000	32.375230446438444
2001	32.731960833779176
2002	31.949171604557268
2003	32.464822798862166
2004	33.24954190601543
2005	32.82232872236604
2006	33.14502317204235
2007	31.752957945062953
2008	33.23552215274829
2009	30.45669948846189
2010	31.50160092599199
2011	32.70946790269517
2012	32.19314306667867
2013	31.215007522555766
2014	32.458320247405666
2015	32.7053666577025
2016	31.964848773053074
2017	33.56461199179475
2018	37.576897298527406
2019	36.65612627203344
2020	33.73385418247866
2021	38.36795529389961
2022	39.18898971832677
2023	35.16746281722607