Year	% of GDP
1960	3.4985521918054263
1961	5.20077779707383
1962	4.599107161061602
1963	5.390332869225674
1964	5.587271983001184
1965	5.529871867201941
1966	6.2542098414874845
1967	8.12415242622259
1968	8.955467415446837
1969	9.378772207696318
1970	7.684254137794494
1971	6.467801445300641
1972	6.161555341237745
1973	7.5519693198438835
1974	9.28707872292141
1975	12.010013132307682
1976	9.31565944594253
1977	10.20630779221156
1978	12.370177411851959
1979	17.868388735603354
1980	17.172328551101074
1981	13.118805237669791
1982	10.938468388266946
1983	10.231541099136708
1984	11.436510825057015
1985	13.994226879602243
1986	20.282576606329688
1987	21.213645288059123
1988	7.035728354558675
1989	6.4306322011977475
1990	6.481099040671095
1991	5.948406425487655
1992	6.087816220176818
1993	5.034537344926479
1994	3.625668696713987
1995	3.850477655875259
1996	3.6424825090051356
1997	3.2342932860698883
1998	3.306278479041179
1999	3.5861046056881722
2000	3.479363696729459
2001	4.338486053348002
2002	4.212367311979824
2003	4.194897442484411
2004	3.1337626589605287
2005	2.5417417424269866
2006	2.2153115324518984
2007	2.397706848656941
2008	3.051179258332342
2009	3.9189416732836393
2010	4.220371446509233
2011	4.820120983105776
2012	5.779005288405907
2013	6.043847317477124
2014	7.75646356225074
2015	8.295551436515291
2016	12.40115307486631
2017	12.06778987346982
2018	11.169602015520068
2019	9.864222465031842
2020	9.99808354324642
2021	11.84430866573357