Year	% of GDP
1991	14.495710897114645
1992	19.21370069409343
1993	20.979731020442248
1994	26.162442675531437
1995	23.484657257124564
1996	23.12378506921927
1997	22.28703511429246
1998	24.246168479137527
1999	23.39514224244654
2000	22.791372901158933
2001	21.88261379263316
2002	22.2218726020635
2003	21.663888762517537
2004	20.873523015437573
2005	20.879186862307076
2006	21.44823100240201
2007	21.477915151223236
2008	21.253290407450073
2009	20.349734748517665
2010	20.31978060086536
2011	19.683829080680027
2012	20.1773021682137
2013	20.68785648486301
2014	20.42303949534248
2015	21.411142407888832
2016	21.866750788171604
2017	22.007395973811096
2018	21.73934965092396
2019	21.831104352537988
2020	20.781438952032172
2021	20.89061415347849
2022	21.407095617139024