Year	% of GDP
1977	0.32008489068245183
1978	0.35178833000278914
1979	0.3790019124431005
1980	0.43208030155416527
1981	0.40526826656659004
1982	0.41888317991199503
1983	0.40236310690586313
1984	0.3708557259463052
1985	0.39799554998987613
1986	0.40701101340566564
1987	0.41064023292058316
1988	0.39942835872079635
1989	0.39416474715426825
1990	0.40269748245532505
1991	0.3361189524962435
1992	0.34555003433401743
1993	0.34248268492548656
1994	0.3504196958863562
1995	0.3160931558976083
1996	0.3187395748994756
1997	0.3647613470219464
1998	0.36165390342203724
1999	0.3642668087681187
2000	0.37221317965572176
2001	0.40557749888416317
2002	0.4519273929808578
2003	0.4954131128036391
2004	0.5041700073488313
2005	0.541351257851535
2006	0.578407551524614
2007	0.615063391580254
2008	0.6507078351029734
2009	0.6576103704770064
2010	0.6449046422666315
2011	0.6505246324930686
2012	0.6677124603335729
2013	0.689473293007412
2014	0.7165734756357136
2015	0.7496817853831876
2016	0.7239721324991873
2017	0.7402541831376557
2018	0.7485378629328818
2019	0.7675138653999282
2020	0.7862673010919055
2021	0.7769454211633791
2022	0.8007420331224848
2023	0.820758591922901