Year	% of GDP
1972	15.027061445399553
1973	15.669540354373348
1974	15.506880489279236
1975	16.2874251497006
1976	16.211608864544615
1977	17.11741424802111
1978	17.34111774667974
1979	17.648831951770912
1980	17.796573660554017
1981	17.062846376882515
1982	18.127921437454436
1983	17.950009796512443
1984	19.10036978763168
1985	20.81317564510403
1986	20.117171186865374
1987	19.905876367336557
1988	20.838621249809634
1989	23.18883537112511
1990	21.18745151428738
1991	20.99614292601918
1992	18.879989310962706
1993	19.868835960901926
1994	19.604374322270353
1995	20.295526021468145
1996	20.984636481790425
1997	21.249839562527836
1998	21.963943143179627
1999	21.75993124267219
2000	20.97606324641621
2001	21.700591426429465
2002	20.824892771235536
2003	20.49276708703538
2004	21.69859607075133
2005	22.972111180598304
2006	24.37808538083429
2007	24.807237282433604
2008	24.32280987007298
2009	21.89487430061618
2010	22.520603877613237
2011	22.8746700116825
2012	23.345765989473602
2013	23.83139136323803
2014	24.43193421760338
2015	25.048692703114423
2016	24.82835598846961
2017	24.76928728931002
2018	24.894894072742176
2019	24.867345326797587
2020	23.24316118491211
2021	25.942029875677434
2022	26.111282890153724