Year	% of GDP
1972	29.0073425021526
1973	28.92177262693943
1974	29.108401333986567
1975	26.71837401555487
1976	26.485810001563486
1977	27.070720120738258
1978	28.135581823055684
1979	28.603434790909688
1980	28.525874596726926
1981	28.047752211860953
1982	27.099193363892205
1983	27.806520745054858
1984	29.010374304973634
1985	30.502808598157138
1986	32.743360129723335
1987	32.221692168643024
1988	32.44583801095836
1989	31.39666031252531
1990	29.724606837575003
1991	29.129390790612376
1992	29.486004148959005
1993	30.84808287340792
1994	31.560280670165614
1995	31.660832017883468
1996	31.87982064585328
1997	31.747026398127705
1998	32.046626242937364
1999	31.926570776831326
2000	31.594119030262018
2001	30.167195826802633
2002	30.11718966555781
2003	30.140777884416515
2004	31.292214494563638
2005	33.07176767092196
2006	31.860291158869458
2007	35.09300116598757
2008	33.42154070902962
2009	33.18383922008824
2010	32.737236674583855
2011	32.75348927181052
2012	33.44639821204139
2013	33.81975265815388
2014	36.50029166096848
2015	33.92161906038148
2016	33.29505948439186
2017	33.399879584306255
2018	32.23524440132859
2019	34.83404295956308
2020	34.5312116923201
2021	35.188299785934234
2022	30.558009552173004