Year	% of GDP
1960	4.768319912772815
1961	4.839901985914619
1962	5.180593659650907
1963	4.760844651908407
1964	5.001375766103991
1965	6.111021070278363
1966	6.586446410834222
1967	7.5363323600575365
1968	8.018407863766592
1969	8.937421101924519
1970	9.813475442593088
1971	8.542129805233282
1972	7.753789069546211
1973	8.558217710851885
1974	9.951198786200909
1977	10.97091056494016
1978	11.131918568225057
1979	9.004063723309455
1980	8.164390671666155
1981	9.723535687111818
1982	10.924327388728475
1983	10.222896665410415
1984	10.281879379048448
1985	9.462803180923817
1986	6.648864479242846
1987	8.684981086440441
1988	8.585478077180047
1989	7.401772731999787
1990	8.579954105645747
1991	12.191026358437405
1992	9.055140766074274
1993	7.677462241701474
1994	7.205403403563892
1995	6.198674741220229
1996	5.672553797480955
1997	6.185634547279285
1998	6.763277195248483
1999	5.925370538460683
2000	5.867681087202576
2001	5.857115857699839
2002	5.450026143293466
2003	5.133923964097545
2004	4.809076311418503
2005	4.5111415721778
2006	4.318045737311842
2007	4.313114129897083
2008	4.062638853547178
2009	4.90004199541824
2010	4.652286906666754
2011	4.4396649127809775
2012	4.582627501868896
2013	5.175108188146938
2014	5.7077566017386285
2015	6.512371315029575
2016	5.532067938237936
2017	5.668286199001568
2018	5.409356791062908
2019	5.043443895377165
2020	5.377811378151723
2021	4.789498367966262
2022	4.615520421345378