Year	% of GDP
1966	17.93540215326156
1967	17.292882147024503
1968	18.693877551020407
1969	17.800212539851223
1970	17.778797613584214
1971	16.995633187772928
1972	22.83783783783784
1973	30.046875
1974	25.777913361805982
1975	23.006002400960384
1976	28.001590708213577
1977	19.40627841267064
1978	25.02232142857143
1979	21.014290433397047
1980	21.860694591635234
1981	25.18690354513821
1982	25.678767952849075
1983	28.5795403800532
1984	26.71176840780365
1985	29.23374480914728
1986	21.44057249533292
1987	22.009866735007687
1988	22.034713099863048
1989	22.10010804074406
1990	20.657648026964257
1991	10.761067607252384
1992	11.620128627546375
1993	12.097922976038774
1994	11.198794597998548
1995	12.196020923536793
1996	11.645600522702502
1997	14.518016243679865
1998	14.665602011512583
1999	15.837170577184676
2000	19.80051358378059
2001	21.953036964907767
2002	27.806460687540813
2003	32.898629312056435
2004	19.37872144541491
2005	20.595679797083825
2006	25.8918162855536
2007	25.69591114436143
2008	27.883328709905737
2009	28.720304860584513
2010	30.24878624178858
2011	35.01217229981017
2012	34.364714081072584
2013	36.14174307737258
2014	37.97904828122691
2017	38.28397214284512
2018	39.47209551295667
2019	44.42000359324235
2020	52.93936611191461
2021	57.020793746454565
2022	53.89530966966658
2023	49.52760649720369