Year	% of GDP
1970	25.5513553223227
1971	25.30173217783825
1972	25.63496514123654
1973	26.870481877501025
1974	26.759369836685114
1975	24.28849836510267
1976	24.9648745830477
1977	25.045340499709624
1978	25.710190290382744
1979	25.749270729934302
1980	25.14252663492842
1981	25.269228532348777
1982	23.612543011908578
1983	23.134130430318432
1984	24.307004967010617
1985	23.87018445444724
1986	24.031174302241183
1987	24.126794134679248
1988	24.966750419670795
1989	25.35886823026085
1990	24.85098769833924
1991	24.740056809405218
1992	24.415795761383446
1993	23.975637459646123
1994	24.21125036351956
1995	24.916053389229674
1996	24.721084203982773
1997	24.769273730652337
1998	24.351447029415805
1999	24.057793374055578
2000	24.211518627868507
2001	23.068878702489965
2002	22.39454726119802
2003	22.32610647049369
2004	22.911080683724173
2005	23.18950782173086
2006	23.693966204590666
2007	24.080923128536043
2008	23.495907296957476
2009	20.897295069009676
2010	21.977557290497206
2011	22.78260657531731
2012	23.013466912694003
2013	23.168333345961415
2014	23.40562316358941
2015	23.440296839579204
2016	23.32291220698262
2017	23.806033162178146
2018	24.165393187930587
2019	24.095506916975904
2020	23.524208286035016
2021	24.272920631195003
2022	24.479514741583568