Year	% of total merchandise exports
1960	4.30379746835443
1962	3.5264483627204033
1963	2.3423423423423424
1964	1.7784326926741276
1965	1.8971455256552447
1966	3.135631751407115
1967	2.7502750275027505
1968	3.297164438582819
1969	6.389026986372966
1970	5.634819485016298
1971	7.3055289546390165
1972	6.189931834539989
1973	8.408019262281377
1974	8.360420211736177
1975	9.123427805604702
1976	11.377911891539062
1977	12.61552986995744
1978	9.832068797836412
1979	8.942664837980702
1980	14.93241716378064
1981	15.174982643329557
1982	15.838581278353065
1983	18.114162857894605
1984	16.242662597790197
1985	16.061089413286965
1986	6.948133548841348
1987	17.56044412168405
1988	15.612279239985419
1989	15.896034255510319
1990	1.840580586201188
1991	2.650921839311476
1992	14.431471217188601
1993	6.730319769349697
1994	5.80063625744239
1995	12.672985691582204
1996	11.075663701170807
1997	10.247655593187762
1998	13.05629018048824
1999	12.050930234682458
2000	7.185344483318127
2001	6.161587733364765
2002	7.937900002121036
2003	9.24109211766629
2004	8.46515491119598
2005	7.494713278071988
2006	10.436122973634616
2007	10.070250298432285
2008	13.941070811419015
2009	18.36963657811145
2010	22.973611494419064
2011	24.3429425800785
2012	27.547661263836343
2013	28.364613421695978
2014	32.55874773080063
2015	28.87945935134426
2016	37.894241329303505
2017	34.316878064371146
2018	39.29255375854645
2019	36.50522044991288
2020	34.8040716834906