Year	% of GDP
1968	9.144514258095699
1969	9.588530999813814
1970	9.89845549961601
1971	8.672423887587884
1972	10.222709017889816
1973	10.133744855967143
1974	5.522067687964967
1975	6.8087461942984016
1976	7.243944306694668
1977	8.340445870745308
1978	7.213909077953572
1979	5.6289848843040335
1980	4.515969487720929
1981	6.368259172108738
1982	7.640762267296967
1983	8.019174391886601
1984	8.938965974613316
1985	9.85824484738679
1986	11.983346983347063
1987	11.767613636363702
1988	13.590844062947138
1989	13.201750302578969
1990	3.6810814193629264
1991	3.1989371425340853
1992	2.869121627961122
1993	2.655458516777249
1994	1.4847745841016284
1995	1.3933513294463047
1996	1.0050155019487537
1997	0.6522166620818035
1998	0.861183074297491
1999	0.8752184590368911
2000	0.9081081475934021
2001	1.476010090726229
2002	1.5219445309502704
2003	1.02658815050142
2004	1.7613887140014706
2005	1.3205273759035097
2006	1.5412175133179018
2007	1.6310623416974677
2008	1.7224440666987983
2009	2.611151510032971
2010	2.269906804519832
2011	2.8219032928609256
2012	2.721776317924519
2013	2.2976348440958105
2014	1.8770638163476183
2015	2.1752084247609043
2016	2.2528688771733263
2017	2.174398742535322
2018	2.0319777183062278
2019	2.1375314964953764
2020	2.5884272621526634
2021	2.4734047805304287
2022	2.5155789944319085
2023	3.5699508722335347