Year	% of GDP
1994	20.229845433963714
1995	20.31555874016746
1996	19.568750441016746
1997	19.51210682870598
1998	19.37855680647461
1999	18.61433644217535
2000	18.085557197907878
2001	17.318889817159164
2002	17.45837966505543
2003	17.73454018704915
2004	17.330783865008218
2005	17.53073706991362
2006	17.823001639489476
2007	18.27341693668625
2008	18.20412504035313
2009	16.7687168772639
2010	16.950654981624083
2011	17.150488568388237
2012	17.15597868617565
2013	17.307168941528367
2014	17.312637888152032
2015	17.683793533837235
2016	17.727798866543644
2017	17.720912119564854
2018	17.6419317147987
2019	17.756141735020623
2020	17.6408295364794
2021	18.269383777367665
2022	17.935261836458253