Year	% of total merchandise exports
1972	4.1460254553768765
1973	2.593329039123981
1974	4.128294696729121
1975	4.961785386731886
1976	3.6461715199041005
1977	1.8922054635586962
1978	1.098901098901099
1979	0.6767673688382161
1980	1.336421276434185
1981	1.1246603904719783
1982	0.9322188370700205
1983	0.24155923032327525
1984	1.1315812075925449
1985	0.6537256354553554
1986	0.7908562171648423
1987	0.6036404160475484
1988	1.0897430932593928
1989	0.49999958673025235
1990	0.4140298524562601
1991	1.0512172330652698
1992	1.1764204598307533
1993	1.0951932751625122
1994	0.794742586207167
1995	0.5238369200898435
1996	0.4547796781471435
1997	0.6375785737200207
1998	0.5323424221777925
1999	0.33359519721151687
2000	0.3641976474899856
2001	0.30773706008675167
2002	0.3834042589658245
2003	0.3828110419081216
2004	0.32674077027064674
2005	0.39559744748838566
2006	0.3719870103563915
2007	0.5257395031480845
2008	0.9109186747621688
2009	0.8239442348386157
2010	0.7238354478674677
2011	1.0023618476817406
2012	1.044090563043023
2013	1.0375140011477861
2014	0.9731146332954475
2015	1.0366948416850623
2016	0.8429397967876546
2017	0.9180485110922842
2018	1.1608869608659576
2019	1.193147657993331
2020	1.0120347844460191