Year	% of GDP
1962	21.3228745137338
1963	21.351737959484
1964	21.2652376009902
1965	24.1100749802345
1966	24.3823763888115
1967	25.5192979599311
1968	26.5839407364707
1969	28.1264511180634
1970	29.3218089579676
1971	31.2675307688143
1972	32.9672256940245
1973	33.1041526600084
1974	30.8587883392619
1975	34.8240930677686
1976	36.8308227137111
1977	38.5638098284207
1978	38.5396248586871
1979	40.2616087320228
1980	40.5284297295701
1981	41.6399131330443
1982	46.3125476861698
1983	48.3462433474829
1984	48.5132080856373
1985	50.1230065550961
1986	56.4670255594622
1987	55.8675602752776
1988	70.0711498939157
1989	82.3294507169724
1990	57.651804597705
1991	57.5137965272498
1992	61.8642515004725
1993	67.6639106779887
1994	57.7664081793214
1995	55.1530725893725
1996	56.9805760190473
1997	60.819481513784
1998	62.9158674977595
1999	65.4769286796451
2000	64.438657355505
2001	67.4357784327483
2002	74.7554469339097
2003	76.6029671559978
2004	71.8812643523264
2005	69.6912579653513
2006	70.4005016530031
2007	71.4324956208983
2008	71.3805470584659
2009	84.6957904043144
2010	85.4350788721556
2011	87.4450514760215
2012	93.0812150830945
2013	98.277225336832
2014	102.25596340349
2015	119.585105546869
2016	131.150524747951
2017	131.498209831595
2018	143.910208551589