Year	% of total merchandise exports
1960	14.874518281793403
1961	14.660741283731157
1962	14.007329936533477
1963	12.499492715393044
1964	14.165875877775669
1965	15.236731001206271
1966	14.713407415893382
1967	13.496106814772343
1968	11.880500062939602
1969	14.68976289297068
1970	16.447118151480108
1971	15.304934866762975
1972	12.789000462494807
1973	12.088195594319979
1974	18.593496684131402
1975	22.375118818943154
1976	17.29586732011735
1977	17.070703303411534
1978	16.9628428976572
1979	15.405563101888028
1980	17.00637120709111
1981	19.035506304486564
1982	13.645399433715296
1983	16.180327975585957
1984	13.627423763567027
1985	11.620754489866915
1986	9.091948732699812
1987	8.466681667158223
1988	8.480009634708706
1989	8.006176287323182
1990	8.468676733734297
1991	10.23736034300656
1992	12.868799466233593
1993	15.295179985320074
1994	12.522231621640302
1995	15.186066178334132
1996	15.460435447083565
1997	15.918042440113561
1998	14.497829266801594
1999	13.935638074408798
2000	14.977466343565435
2001	16.770426681747715
2002	18.771460579680063
2003	19.208969353022525
2004	20.624420201876543
2005	21.437260326383228
2006	22.95397591193274
2007	24.863703657608202
2008	24.375754840690085
2009	24.290851928380402
2010	27.199072607439874
2011	25.198963468072645
2012	26.901827789674552
2013	27.76752189490013
2014	28.818386009645597
2015	25.846678399530056
2016	24.77209761252526
2017	25.97168757535002
2018	26.751588853756115
2019	27.570531291668683
2020	29.139022692780962