Year	% of GDP
1960	13.89840607775957
1961	12.18416619876474
1962	14.893617021276595
1963	15.955631399317404
1964	14.61706783369803
1965	14.617123758969822
1966	16.037821620147284
1967	19.653904029426517
1968	18.498763141620284
1969	19.371256035085626
1970	20.885200553250346
1971	17.099863201094394
1972	15.940225151944281
1973	19.068494195533926
1974	26.19623006283229
1975	18.95017793594306
1976	19.213650564304547
1977	23.06079733635212
1978	24.34740456535908
1979	24.54985583873732
1980	22.701914736480365
1981	19.311585508383992
1982	12.928128528205804
1983	12.690703226982643
1984	15.963354985477016
1985	15.87987035830795
1986	12.696151304581772
1987	15.959976279163858
1988	19.242616740333172
1989	17.54532492590709
1990	21.064600056174825
1991	22.598790203377703
1992	23.798771879466273
1993	30.76104643039244
1994	34.49427149185724
1995	28.926521575282788
1996	28.534123841839705
1997	29.486865267372604
1998	28.3487684708171
1999	31.78360771313433
2000	28.288431210397714
2001	26.000944131563635
2002	24.258360907541114
2003	25.280882355000568
2004	29.665557327059116
2005	27.622975889726874
2006	28.34192972931048
2007	33.66530060727705
2008	36.065969836546344
2009	20.599443751492025
2010	21.879840687502924
2011	25.999991642484595
2012	24.564208790129197
2013	21.7603523031056
2014	22.183832227738474
2015	25.11800474886035
2016	23.377128535763394
2017	24.820713172360108
2018	26.572086282813963
2019	22.96771051462136
2020	19.666372727560955
2021	24.230933049991517
2022	26.326231741088073
2023	23.118689953978993