Year	% of GDP
1970	2.675081553186652
1971	2.0517152228547806
1972	2.0872985753061175
1973	2.4657834186237166
1974	2.7788038566689908
1975	3.5199804173855993
1976	2.5678999675946526
1977	2.0342224482110702
1978	1.379424343649286
1979	1.0779281801402683
1980	1.0887007554319934
1981	2.652638077598449
1982	1.1087139893820919
1983	1.9289604659201633
1984	1.5271230204237878
1985	1.783525448186589
1986	1.3804078444540966
1987	1.7714725230851633
1988	2.648099689257363
1989	1.9291468845464554
1990	2.8450434629267902
1991	2.4790599708493173
1992	2.6389408437356954
1993	2.5743857418427947
1994	2.8378568170626983
1995	2.9096796419210147
1996	3.655886971184394
1997	3.2457622332805873
1998	4.490562018125188
1999	4.34566834779079
2000	4.8184645000040955
2001	3.8923361753799677
2002	4.362026940331962
2003	4.483539703162722
2004	5.823126533318657
2005	7.628435395077471
2006	7.9285043308346275
2007	8.337426091590903
2008	7.909007192949997
2009	5.25151067240009
2010	5.063711990957053
2011	6.391725396300075
2012	5.708661248619532
2013	6.291277352193
2014	6.232936610397837
2015	5.236394576663319
2016	4.452962117703258
2017	4.833275220728136
2018	4.829438721343998
2019	4.220940166609263
2020	3.370435233111925
2021	5.530729864068392
2022	5.305043279299437