Year	% of GDP
1970	25.89911728627697
1971	25.56890617518377
1972	25.8542070146568
1973	27.034764536211704
1974	26.145603440059045
1975	23.83757349517108
1976	24.35641565731103
1977	24.557528481842724
1978	25.484775247563686
1979	25.31861894882127
1980	24.259643064858416
1981	24.4548405041893
1982	23.17661516111925
1983	22.93491012490868
1984	24.185049303637296
1985	23.880571336281463
1986	24.17003618135089
1987	24.22448281653557
1988	25.131581042066237
1989	25.372875526518506
1990	24.969233933980647
1991	24.688488826197652
1992	24.075971351244988
1993	23.908811683973198
1994	24.19072243221129
1995	24.85983090142889
1996	24.645030823754947
1997	24.719387390859733
1998	24.35319252038994
1999	23.89099619976596
2000	23.801916242873098
2001	22.68809685769617
2002	21.994209142939965
2003	21.805416668359427
2004	22.28497126034828
2005	22.33465293838181
2006	22.66083758602536
2007	22.99710951126774
2008	22.190016206510872
2009	20.01075738373017
2010	20.654362011761595
2011	21.053966139239098
2012	21.215306177461667
2013	21.54546189387003
2014	21.962727097348612
2015	22.26159205056767
2016	22.2509308244146
2017	22.670232719491118
2018	22.808588316000346
2019	22.829692558457797
2020	22.42538993924222
2021	22.802213809801504
2022	22.40911942013929