Year	% of merchandise exports
1966	15.365549130792717
1967	14.616231028275834
1968	13.919198667041005
1969	13.343572377740694
1970	12.409021378855073
1971	11.772794448196313
1972	11.634735945498047
1973	11.014867850846988
1974	10.102613400706751
1975	7.829260036422828
1976	7.227755800638408
1977	7.011001092582552
1978	6.220704918495408
1979	6.363713461726281
1981	5.7693785242342495
1983	5.520865852988831
1984	4.714265508267973
1985	4.997655255339679
1986	5.363269164813359
1997	2.8534850719212255
1998	2.309956962569139
1999	2.269564441017341
2000	2.2164030508134465
2001	2.1404195097670127
2002	2.1349710251952114
2003	2.1814235990905524
2004	2.497584857636331
2005	2.464291956152986
2006	2.533222348512892
2007	2.541693043162514
2008	2.4872212866642904
2009	2.0731660411097983
2010	2.699436523350939
2011	3.4532695172972834
2012	3.9107847792217267
2013	2.832033378242696
2014	2.144041552085315
2015	1.8820223151351956
2016	1.9562928280056722
2017	1.9487364287348394
2018	1.8863002506875126
2019	1.8232956023706348
2020	1.9264612684334217
2021	2.162248359828148
2022	1.6928263427658767