Year	% of GDP
1972	17.79831288943093
1973	17.896330512089442
1974	17.882624286277306
1975	19.470545502889188
1976	19.732445399090004
1977	19.602983150368956
1978	19.123583570158008
1979	18.921088419321038
1980	20.544169737448584
1981	21.00472055081304
1982	22.463139869172366
1983	22.802733488202378
1984	21.47035884816103
1985	22.17480195225651
1986	22.23061202965916
1987	21.37433666686233
1988	21.03032634015718
1989	20.863126996337904
1990	21.558929316481372
1991	22.88438582562983
1992	21.81838426201631
1993	21.417472679027767
1994	20.731454285273593
1995	20.533004422003916
1996	20.005395682116532
1997	19.38968134498048
1998	18.721331347637275
1999	18.104442533058283
2000	17.926530140810335
2001	19.509764240527414
2002	20.084018750661077
2003	20.660618254345806
2004	20.448530906764532
2005	20.745106466295432
2006	20.595141008526387
2007	20.86464369636847
2008	22.78761981662388
2009	25.576516533595267
2010	26.05459336721428
2011	25.34569952868421
2012	23.911903984072815
2013	22.88146397867906
2014	22.610072683437625
2015	22.373535660170674
2016	22.415921839149163
2017	22.14069965575337
2018	22.169479112547343
2019	22.53593598370366
2020	31.695173510231932
2021	30.872912305659007
2022	24.495753746837917