Year	% of GDP
1979	21.839762874837028
1980	26.106911429551825
1981	25.351876748177236
1982	26.09788838437809
1983	28.497829726301294
1984	26.342689832384725
1985	26.721759785917854
1986	20.971307174592443
1987	25.74444383624227
1988	20.56095447497948
1989	19.727713770867837
1990	19.822234359387352
1991	18.215831968223775
1992	16.446261903725077
1993	18.849578442322883
1994	19.188156354148518
1995	20.694126152437732
1996	21.304888906736704
1997	21.827470252593308
1998	22.567387450687807
1999	22.5053913556409
2000	20.86001483336053
2001	20.804545226227187
2002	20.560378787595145
2003	19.782320844940752
2004	21.4684386553467
2005	19.665140538393793
2006	21.895067733307375
2007	21.588238811402892
2008	20.405125290238328
2009	20.357425845813548
2010	19.123080133366262
2011	19.252909756763295
2012	19.160950499307265
2013	16.36445680276384
2014	16.847084872324732
2015	18.51554916238067
2016	19.384966743581046
2017	20.61617243327487
2018	21.495058055155724
2019	21.318232312509785
2020	22.25187385612717
2021	21.844179749917075
2022	20.102630446568423
2023	19.679638855795616