Year	% of total merchandise exports
1960	2.733145067404172
1961	2.9981746755666188
1962	2.6388768135007132
1963	2.6697658770270385
1964	2.5640349690351725
1965	2.7020398842242157
1966	3.138107094064926
1967	3.2691884500108834
1968	3.2871131703753007
1969	3.158398013301652
1970	2.9007356374590083
1971	2.8533267417649855
1972	2.6932499773620324
1973	2.9236733682095553
1974	3.166387055828881
1975	3.070842457567513
1976	2.6483459601122816
1977	2.6657741843079674
1978	2.9811778952424413
1979	3.1096481053355935
1980	3.477680965618762
1981	3.5593332076059303
1982	3.708556874824261
1983	3.837664730562753
1984	3.8047967241593184
1985	4.217503028479168
1986	3.6862823968917935
1987	3.67335591280437
1988	4.170874683790393
1989	4.306015181499076
1990	4.26378424022708
1991	4.852495700291287
1992	5.4923312106688496
1993	6.758435958936737
1994	7.067229586162814
1995	7.497962359898508
1996	7.606492609404944
1997	7.336812820736272
1998	6.016702607618894
1999	6.213402358196897
2000	7.288580218056976
2001	7.394092353754557
2002	7.930868546383428
2003	8.757571963780311
2004	9.04456274559971
2005	9.305570765576835
2006	9.42928633637299
2007	9.696030462137509
2008	9.875135838251703
2009	11.098597966752708
2010	12.303515554961308
2011	12.652745049491282
2012	13.172068249267419
2013	13.58391459576785
2014	13.51666801432776
2015	13.808782426993155
2016	13.7449738652399
2017	14.684059254359521
2018	15.015241963573732
2019	15.094213682550045
2020	15.67640064935934