Year	% of GDP
1963	2.5114854517611
1964	3.49645390070922
1965	3.41863517060367
1966	3.5125936010891796
1967	3.01910043130006
1968	2.61472785485592
1969	2.38686735837108
1970	2.13053918358437
1971	2.08758503401361
1972	1.79584396646008
1973	1.68816199376947
1974	1.95766814852145
1975	2.13109429304577
1976	2.7017212284846397
1977	2.24195045907314
1978	2.37522893772894
1979	2.13869586579631
1980	2.10206329573495
1981	1.8180488747525698
1982	2.06309744064138
1983	1.9512132516513199
1984	1.7551240070341398
1985	1.6437068968473598
1986	1.78721366645198
1987	1.8563762767583598
1988	1.7496987492702398
1989	1.5401237785633701
1990	1.46107058594342
1991	1.21083405924608
1992	2.14013212989672
1993	2.50563157717782
1994	3.1464300121016504
1995	2.93502710736712
1996	3.0940883958553
1997	3.63740346813324
1998	3.96567378793071
1999	3.75507998270644
2000	3.4333856350536296
2001	3.82069546333074
2002	3.70082935899902
2003	3.25121089347184
2004	3.2838845233139
2005	2.8341783501146502
2006	2.6438075477201997
2007	2.92332102697669
2008	3.0247471409038598
2009	3.8485136982934396
2010	3.51801260882618
2011	4.32570635861069
2012	4.46107862007699
2013	4.84450891704059
2014	5.54848333584853
2015	6.27024285623508
2016	6.384928983018651
2017	5.92438332688534
2018	5.48358870056161
2019	5.99969025937654
2020	6.69246839735744
2021	5.585446667751659
2022	4.77943828648395