Year	% of total merchandise exports
1960	2.4626015019622494
1961	3.059143028841794
1962	4.00216743713647
1963	4.354699303682141
1964	6.716436716436716
1965	8.050270036941509
1966	5.9567143857771345
1967	4.832074724094602
1968	5.504999756959849
1969	6.759245240684122
1970	6.922987642886625
1971	6.437523891631626
1972	8.100481693553618
1973	7.918808028218802
1974	6.632214853424154
1975	5.183739854130927
1976	4.007584851497624
1977	4.211831077858587
1978	4.466034117619714
1979	4.058136317549563
1980	6.336434648105231
1981	5.93365346069487
1982	5.885461862641141
1983	5.965916791153198
1984	6.094425047882401
1985	5.670542515627324
1986	6.522813618932825
1987	6.871622305267332
1988	6.880043029909093
1989	6.7451676497049915
1990	7.146536803943023
1991	7.333488669180651
1992	7.459604260541479
1993	7.2705736146052775
1994	7.368190524415616
1995	7.344251927498241
1996	7.19035459979656
1997	7.469120074712353
1998	8.575995414722518
1999	7.673329238857736
2000	8.745105903659969
2001	8.37285215535006
2002	9.456597114902388
2003	9.284014561136207
2004	10.036645127459384
2005	11.02158250735575
2006	10.207668090599253
2007	9.766256342570106
2008	9.040447121412013
2009	11.177940065662765
2010	10.666846225108317
2011	13.422004787870776
2012	14.261005810103047
2013	14.585998325782205
2014	14.354631645743481
2015	13.91056241221432
2016	13.666920472674043
2017	12.388816279536513
2018	12.152197491404225
2019	11.961802163600382
2020	12.280639067498525