Year	% of GDP
1972	20.430099530524473
1973	21.01501704198636
1974	21.92879854257754
1975	21.97448828427919
1976	22.06280919727072
1977	22.815596919157358
1978	22.757422167426256
1979	23.21551182951933
1980	24.082166601783474
1981	24.766169556621037
1982	25.108994726241768
1983	24.403787116361162
1984	24.240377576308354
1985	24.77995318878325
1986	24.75254429436907
1987	25.130253624238065
1988	24.791057639461208
1989	24.735503350870115
1990	23.668630302473538
1991	23.75741715846737
1992	23.4354615873679
1993	23.464602408749645
1994	24.100081378825983
1995	25.76159656629612
1996	26.016865708587897
1997	26.36296320019621
1998	26.43461186946227
1999	26.601941214371525
2000	27.05869612962426
2001	26.388562064076464
2002	25.103597120185825
2003	24.815852300684647
2004	24.750785687273975
2005	25.421368531833444
2006	25.852018649865528
2007	25.922764614980267
2008	25.583756867853587
2009	24.306791495723452
2010	24.9952226019126
2011	24.837927385644864
2012	25.3227065148704
2013	26.45346566514146
2014	26.391191540394335
2015	26.41052412682202
2016	26.240168362518176
2017	26.627919181288064
2018	25.993657643834382
2019	25.92208443018188
2020	26.101588099345836
2021	26.80291730195547
2022	27.411266147725513