Year	% of GDP
1960	8.989889801826248
1961	9.456326985634451
1962	9.991222296118233
1963	10.027499635672775
1964	10.612557090203687
1965	11.10000639948975
1966	11.13629508087622
1967	11.575923932111078
1968	12.436509281818745
1969	12.283013598695526
1970	11.938726609464569
1971	13.563698108846761
1972	12.812229439812242
1973	12.387575735966443
1974	11.80963645088647
1975	13.07854864982992
1976	12.544615439745488
1977	13.00050454651468
1978	14.070657522343048
1979	14.352592614623683
1980	14.536813640230859
1981	10.568696724227271
1982	11.083415554944898
1983	12.583692152804899
1984	13.837517788765108
1985	12.816308750470643
1986	16.85456918025028
1987	18.682327297423363
1988	18.309564805513947
1989	18.11605803834712
1990	18.513063786140535
1991	18.563377701714572
1992	20.659572207673822
1993	20.037293562024374
1994	18.733598133063932
1995	15.43177290768103
1996	14.249369054858787
1997	14.004819909057764
1998	13.375175688985394
1999	18.363039480632267
2000	17.203809794883078
2001	17.083110439435753
2002	15.882108329634487
2003	17.377201501908914
2004	17.156966304841564
2005	15.985329283042477
2006	14.854531248371991
2007	14.93571836292547
2008	14.566704555926183
2009	15.915276742114095
2010	15.660953144340843
2011	16.308078265407282
2012	15.924910922227669
2013	15.674127677219063
2014	14.919424569979828
2015	14.814834987586492
2016	15.318942264841198
2017	15.959483277740375
2018	15.279912580637406
2019	14.723604536703155
2020	15.460873132658518
2021	15.501751450050897
2022	15.152803139087945
2023	15.704783955353458