Year	% of GDP
1977	7.635759780017868
1978	9.863408757074918
1979	11.058971947002561
1980	18.5207467184139
1981	16.12676468753824
1982	17.197928042606332
1983	19.291344706146372
1984	18.970765931360464
1985	22.410631693988623
1986	25.47241131390427
1987	28.076753587114787
1988	33.931807577287294
1989	40.43648930858074
1990	48.061725911304535
1991	52.029647459148585
1992	60.527104947849566
1993	55.61795628624613
1994	32.18601274594789
1995	40.42188662595596
1996	39.80391315939381
1997	36.8937761002086
1998	34.007332205528726
1999	31.94715862157771
2004	33.551869384538776
2005	41.642763802877205
2006	41.86342445224881
2007	41.67221780090987
2008	37.8032334018498
2009	38.48947497251844
2010	42.69427920525409
2011	39.13135034413575
2012	36.24835656749942
2013	37.00012806605618
2014	34.29928697959873
2015	32.93621699697169
2016	35.4859149164233
2017	37.35247055756947
2018	39.44755534793979
2019	42.29638220147785
2020	19.462238017763816
2021	19.113585905866717
2022	27.676499418646454
2023	46.57062550822916