Year	% of GDP
1978	1.7721518987341773
1979	1.2956357532522031
1980	1.3351351351351353
1981	1.4078947368421053
1982	1.43
1983	1.545238095238095
1984	0.27499999999999997
1985	0.40217391304347827
1986	0.3404255319148936
1987	0.18627450980392157
1988	0.4
1989	0.36250000000000004
1990	0.6799999999999999
1991	6.66360655737705
1992	6.116923076923077
1993	6.163188405797102
1994	5.8316
1995	5.973815789473684
1996	5.342705882352941
1997	5.139340659340659
1998	4.796442307692308
1999	5.0990654205607475
2000	4.428103448275862
2001	4.4107377049180325
2002	3.9415343214573824
2003	4.060850221198389
2004	4.433159217722579
2005	4.739055049257897
2006	4.637275260943221
2007	5.477559978808749
2008	5.2140040796664895
2009	4.80944561714318
2010	5.644099090532155
2011	5.821855437025957
2012	4.985126522838759
2013	4.529244702149064
2014	4.6966760659313485
2015	3.863735825483601
2016	4.213609715347514
2017	4.30020325203252
2018	4.441216730038023
2019	3.855571680403893
2020	4.43728197563752
2021	4.99165950044835