Year	% of merchandise exports
1962	0.1450139625582388
1963	0.30147835548352414
1964	0.2357636455490501
1965	0.34890620917025583
1966	0.15792863003881136
1967	0.2129961500225031
1968	0.3620894670173873
1969	0.25201882483977167
1970	0.16484055636146452
1971	18.737217433617175
1972	17.371545928120792
1973	39.3822851316486
1974	50.10337517344604
1975	60.85857335869722
1976	64.31622303083138
1977	74.5379354903697
1978	83.95337144468054
1979	87.80275158294513
1981	79.78944713791651
1995	79.95688834525207
1996	64.21944469840406
1997	70.45840067870213
1998	67.26164372350075
1999	59.247328457708825
2000	40.67333272528181
2001	41.16249564885159
2002	45.42453871525184
2003	50.257518215531626
2004	33.97987093226182
2005	31.315022152788664
2006	32.919404445307855
2007	47.91468946045035
2008	43.110644357349955
2009	55.56501836308412
2010	50.30029929568066
2011	68.90457904599603
2012	0.0709574206197524
2013	49.34560108340405
2014	45.90554265103076
2015	50.9043365371471
2016	45.19439075697328
2017	33.64732064431649
2018	23.33159688609074
2019	31.695630837348993
2020	36.04834035163294
2021	25.90418152425859
2022	32.2263338332376