Year	% of GDP
1989	24.11498286192906
1990	20.180319697044656
1991	19.643177220115017
1992	19.83025686848192
1993	21.244750461098512
1994	22.34678334167094
1995	18.636917591939177
1996	18.712587225093937
1997	19.574340079624417
1998	20.331680578745793
1999	19.277980512967183
2000	19.807578524171802
2001	18.817402221501474
2002	18.611563075525563
2003	18.526873757802296
2004	19.548187688433718
2005	19.36336371616966
2006	20.113558967213294
2007	21.23225143721516
2008	22.467055469680922
2009	19.855843146471248
2010	21.680503696164962
2011	22.03486837023043
2012	21.565717939939606
2013	21.45808326264059
2014	20.927806301912767
2015	19.871658464218477
2016	18.81580344238354
2017	18.45093915393477
2018	18.680629185492336
2019	18.245719361362543
2020	17.512609297938248
2021	20.14941738603134
2022	19.971475474640464
2023	19.354258915536594