Year	% of total merchandise exports
1960	3.231949313922654
1961	3.639713212236237
1962	2.636508161640976
1963	2.877732028282119
1964	3.969478307611866
1965	4.465891487619594
1966	4.828852570164976
1967	4.274422061027919
1968	4.542750839845397
1969	4.8800533626561435
1970	3.7867601245556064
1971	4.3219923763217825
1972	4.021968002762309
1973	3.5829590979289665
1974	2.964601393193033
1975	3.2932858800618963
1976	2.561138257267882
1977	2.904868583521105
1978	2.8769052839976395
1979	3.0588768059740157
1980	3.387572810922822
1981	3.78109852882463
1982	3.6837380644663154
1983	3.268649916472689
1984	3.6028372411230682
1985	3.348156280604127
1986	3.4152344724427373
1987	3.581370506979837
1988	3.7455488456520287
1989	3.752979866375134
1990	3.925138640624056
1991	4.5405639474813775
1992	5.602766253045421
1993	6.091310537428366
1994	9.068571564996917
1995	8.749733940508738
1996	9.00686811022624
1997	9.27155346496998
1998	8.457504357514651
1999	7.473814209909249
2000	8.133885738526526
2001	7.680980978882046
2002	8.234250540233717
2003	8.644453122410486
2004	8.499429808254055
2005	8.838361337106477
2006	8.690928696029166
2007	9.55300663744219
2008	9.930661465901478
2009	9.251604912549192
2010	9.55598684718255
2011	10.007365635368053
2012	11.103245090087595
2013	11.260013361534874
2014	11.156156057668758
2015	11.660499436737773
2016	11.864482109373187
2017	12.53656285373983
2018	12.430340173035013
2019	13.099387257811527
2020	13.270831778553541