Year	% of GDP
1981	47.52308733938364
1982	50.695500847083665
1983	49.904052537608706
1984	50.354375966954414
1985	47.318503272112814
1986	48.16254804655165
1987	45.57253161838885
1988	43.02700605741201
1989	42.346043713294655
1990	42.04740905062737
1991	41.16452221672535
1992	40.98560250884392
1993	42.35010353460731
1994	42.51773135823155
1995	36.97942326469704
1996	35.358226938803895
1997	36.33392868158632
1998	42.380882248237114
1999	43.588484015264264
2000	43.798454922761074
2001	46.22247971582228
2002	38.9699324729488
2003	39.14551120282443
2004	43.35501824993405
2005	44.68420573579044
2006	48.48879871365796
2007	49.96237104720503
2008	48.9753597288614
2009	50.981397065431
2010	50.78884367090832
2011	49.24303151605766
2012	50.18588448315581
2013	52.36660112245831
2014	54.1531280154165
2015	58.12222191822909
2016	59.785097680093756
2017	55.804696887755746
2018	52.017050934471044
2019	49.73021690208233
2020	46.386127467157316
2021	43.788391856423566
2022	44.03576769886978
2023	42.765531770700626