Year	% of total merchandise exports
1960	3.2935477427087494
1961	3.071648310358594
1962	3.387040126437791
1963	2.896347642790547
1964	2.93714781100997
1965	2.993974292412014
1966	3.05143077539274
1967	2.791937456204229
1968	2.5744428041623157
1969	2.600859921240858
1970	2.3064684913092677
1971	2.2279035792549307
1972	2.2186069794050343
1973	1.9122946288668792
1974	2.3684435071979713
1975	2.968711188769261
1976	2.6544083919988832
1977	2.680727851575365
1978	2.5578815473387655
1979	2.461321971130666
1980	2.8001217738389204
1981	2.5965520954911794
1982	2.403817872748636
1983	2.0874235167899777
1984	1.7364226045122662
1985	1.7562383416041951
1986	1.7633996766044961
1987	1.642244184527979
1988	1.5868577420482348
1989	1.5030425370695732
1990	1.2989710591911192
1991	1.280000407286103
1992	1.27603784679959
1993	1.3401738719426608
1994	1.0850223980876332
1995	1.1831141752190169
1996	1.073600019410717
1997	1.1338916203183511
1998	1.2747696832084654
1999	0.9338103954976766
2000	0.9254899377673722
2001	1.0102095902157624
2002	1.0276024889974347
2003	1.2193551037577117
2004	1.1298505618291825
2005	1.1938038036407719
2006	1.2731422508552914
2007	1.5303864020444784
2008	1.7243679011707747
2009	1.897291040904796
2010	1.9849342256696874
2011	2.1541614884144957
2012	1.9719045509082453
2013	2.1481158878824744
2014	2.1127162950933287
2015	2.0435208287608555
2016	1.628804054286145
2017	1.6693372438330534
2018	2.0735108954476273
2019	2.044087946587336
2020	1.9642869798629863