Year	% of merchandise exports
1962	13.869751395797202
1963	12.776549466100176
1964	13.757719369901357
1965	15.40806240935247
1966	17.011374656246776
1967	16.98609788410579
1968	18.227268842665673
1969	17.050347903505653
1970	18.736012673202016
1971	17.262306182390326
1972	17.61266047178141
1973	18.375158492511122
1974	13.595113916596505
1975	14.542664715909126
1976	15.41970404709431
1977	16.57707277349868
1978	17.02450576336313
1979	15.401290064280808
1981	14.113434686608041
1983	16.11661108120927
1984	17.164399134357282
1985	15.95931682296189
1986	16.74289092436462
1987	19.424666258182057
1996	25.55036453981121
1997	27.50326724753583
1998	24.707208178441974
1999	25.98973323011575
2000	23.42856017693246
2001	23.195908502642286
2002	26.886285520768975
2003	25.188388188489455
2006	25.748042512015402
2007	25.518302229336513
2008	26.205330247574285
2009	26.248734196502664
2010	27.332479929697996
2011	22.02172043439845
2012	22.39735773305968
2013	24.934679820419536
2014	29.089280738344648
2015	31.604501330145574
2016	29.20933732324496
2017	26.7565965856987
2018	23.868657646231714
2019	24.5556012282613
2020	24.199717982723037
2021	25.298399485451984
2022	27.21803123965316
2023	23.312345189064754
