Year	% of GDP
1970	4.837664238941254
1971	5.145578211829476
1972	7.508787532358979
1973	5.6282381355424365
1974	7.154774709301358
1975	6.6024321022159205
1976	8.73816518836267
1977	9.255828946680893
1978	12.273338304572324
1979	10.623799722230345
1980	9.803696612442153
1981	9.806828896638867
1982	9.67947583513323
1983	9.197474474382627
1984	9.363956120254773
1985	10.433938119617016
1986	11.790028498107215
1987	13.765922780893591
1988	14.446352142399446
1989	15.18015130650813
1990	20.247389288335768
1991	20.985038155973395
1992	21.73424634945272
1993	23.778767657833804
1994	13.468723532905596
1995	17.508628906066694
1996	18.46912672547596
1997	19.62077707625199
1998	22.091577842136637
1999	25.17147751001359
2000	28.118523279429663
2001	28.97517851846032
2002	29.879240284852298
2003	29.94121447150806
2004	30.56982577464884
2005	33.967204681291356
2006	38.702695715627776
2007	37.615803171074354
2008	36.48446947709216
2009	36.23013516765502
2010	37.93268717232693
2011	39.45029594828728
2012	40.12882712332914
2013	39.724749170228264
2014	42.85911770755412
2015	42.25820574886066
2016	44.69940300906859
2017	45.38806396898581
2018	47.4608987392654
2019	47.87922524050152
2020	49.612468247821525
2021	54.07134672724475
2022	53.37266425244397
2023	44.25876075563197