Year	% of GDP
1979	0.352029932602192
1980	0.40662816189898277
1981	0.7528412547395873
1982	0.6772051977693551
1983	0.7109084904358194
1984	0.9009647530955305
1985	2.423275167622042
1986	2.3055349388343105
1987	2.2932016370702404
1988	2.040815801627168
1989	1.9438180579359796
1990	1.6414137162305997
1991	1.385896649566955
1992	1.480548920085715
1993	1.5976214399259663
1994	1.6235831528081157
1995	1.6601100399488447
1996	1.566684520621318
1997	1.656945917285258
1998	1.5649264309182471
1999	1.198185679452556
2000	2.5801948377738375
2001	4.695107736820872
2002	5.422080653665297
2003	5.37617238534145
2004	6.375192277592348
2005	6.82162950851639
2006	6.65017630138786
2007	5.423191750456151
2008	4.163201807201889
2009	5.958884605934574
2010	5.593051233652303
2011	4.248191484179066
2012	4.798754019051529
2013	4.8585113044086015
2014	4.549371383412777
2015	5.389398474544693
2016	5.524356570773232
2017	5.206679165538543
2018	5.196908462503509
2019	5.263526435362883
2020	7.155285570683742
2021	9.143607547392909
2022	9.213439521321206
2023	9.099516338744698