Year	% of GDP
1980	37.16814159292036
1981	36.58536585365854
1982	36.15384615384615
1983	37.121212121212125
1984	35.714285714285715
1985	32.142857142857146
1986	34.306569343065696
1987	35.2112676056338
1988	35.61643835616438
1989	34.72222222222222
1990	33.33333333333333
1991	31.770833333333332
1992	22.92225201072386
1996	41.35711516091508
1997	44.79790994313816
1998	48.019752693096514
1999	49.208813308165894
2000	53.2458506395724
2001	52.91279592448307
2002	52.353809012875544
2003	51.42630282224635
2004	51.6932504096984
2005	51.08898622309804
2006	55.22447588452418
2007	56.84367239816874
2008	60.712244887260226
2009	60.655509840987435
2010	62.4461510677683
2011	61.21652898578489
2012	61.46833638025595
2013	61.760621181961696
2014	61.14884307420717
2015	60.39200735208985
2016	60.71269444368451
2017	58.32648234155782
2018	58.34961012914886
2019	60.099726903430806
2020	57.88861816867179
2021	58.698590837230746
2022	59.04924636288773
2023	61.68932781696284