Year	% of GDP
1968	10.220905959908649
1969	10.409104433361044
1970	10.876356269800393
1971	11.37534846008339
1972	11.641209153189386
1973	11.765165605990113
1974	11.517885087355092
1975	13.15702342133635
1976	13.581462790914573
1977	13.580412031669283
1978	14.368716379464729
1979	13.804483173445206
1980	12.821979921378073
1981	13.488034503292198
1982	14.407650193967413
1983	14.104552272523105
1984	13.799610548394972
1985	14.068530241093399
1986	14.282100040224503
1987	14.108142266947754
1988	13.511305944591925
1989	13.453263208075485
1990	12.833435278677438
1991	13.206295497814876
1992	12.915909698131756
1993	13.072171285855912
1994	12.639823345972312
1995	12.533049641483965
1996	12.338573095702749
1997	12.644809215103155
1998	12.875064759541296
1999	12.900265250307966
2000	12.731672960986721
2001	12.991495022642912
2002	12.716579962152974
2003	12.760126300263552
2004	12.416684939635768
2005	12.22567982751502
2006	12.218426055601224
2007	11.993722365618794
2008	12.120328866472581
2009	13.45586476517828
2010	12.85478934872
2011	13.138383132187611
2012	13.272436715928551
2013	13.452562791865263
2014	13.807595239823037
2015	14.11382432512482
2016	13.68131192396938
2017	13.520841650127394
2018	13.378111798094436
2019	13.328475116469999
2020	14.211886991350248
2021	13.090093287041269
2022	12.497370184156944
2023	12.748842303877236