Year	% of total merchandise exports
1960	1.4621801510175736
1961	1.6227912097422807
1962	1.6669057891176235
1963	1.6745494251960258
1964	3.1222571272962205
1965	3.3277995085298064
1966	2.5806969255907126
1967	2.309306853844414
1968	2.6586787684890876
1969	2.481796459572566
1970	2.3969180339693614
1971	2.498120054789858
1972	2.4755108578278433
1973	2.288081104390718
1974	2.1072483983881427
1975	1.8002109257403704
1976	1.4242545841360583
1977	1.6234796508636153
1978	1.6590371089220384
1979	1.4953251537866084
1980	1.5794690876773643
1981	2.2088226513265763
1982	1.9906186695258479
1983	1.763828507691152
1984	1.8000610362746183
1985	1.7959977212103766
1986	1.6671700107046359
1987	1.7431995306985673
1988	1.807762811852617
1989	1.4671039580744383
1990	1.6623442560302248
1991	1.5505183971179404
1992	1.693531402617464
1993	1.579802464288834
1994	1.5179425763687149
1995	1.690197852170628
1996	1.6772564877403622
1997	1.6798117032801092
1998	1.7930632223345833
1999	1.6549862129851454
2000	2.021199535887534
2001	2.1080728956826613
2002	2.2220309064373676
2003	2.1791552459222174
2004	2.2353662885351566
2005	2.2651848142816937
2006	2.2674268790297587
2007	2.4062582496900857
2008	2.5244407549210615
2009	2.9518272271957695
2010	2.994463770241176
2011	3.2269693575988634
2012	3.258023755307593
2013	3.346485035619584
2014	3.5047650034882247
2015	3.5538019329226227
2016	3.2821052577623235
2017	3.0697167375681835
2018	2.9620646007729046
2019	3.163270498755122
2020	3.1737978978450028