Year	% of total merchandise exports
1960	20.70133600884516
1961	18.945729372243083
1962	16.519862654923827
1963	16.14365520360639
1964	15.669515669515668
1965	15.614178677273136
1966	15.480219524776901
1967	15.229689634305924
1968	14.419805268822309
1969	13.711382398490704
1970	12.954173478348038
1971	12.878510675880733
1972	12.053490767319126
1973	12.008175323613695
1974	13.991044624463047
1975	16.69634588519764
1976	15.175275676543846
1977	15.075979059268132
1978	14.641790692708367
1979	13.374205877577008
1980	14.584065451105783
1981	16.665202310112566
1982	15.393191746319527
1983	13.926012398039008
1984	12.825711966487136
1985	12.244276457097268
1986	10.680521562386632
1987	9.49376102263169
1988	9.146884218098418
1989	8.846844167670739
1990	8.693284823372181
1991	8.809605403150442
1992	9.552065613543144
1993	11.861072278740442
1994	11.128200070438279
1995	11.377671227878604
1996	11.720206128146055
1997	11.79458153959008
1998	10.849243416752028
1999	9.758451871846088
2000	10.049040953443253
2001	10.40820206047226
2002	10.634620312480433
2003	11.048294264907925
2004	11.687382959415816
2005	12.156692777721762
2006	12.633832515505405
2007	13.313137553161813
2008	14.22065505276966
2009	14.888802631129378
2010	15.83209702464925
2011	16.297268015661164
2012	17.51200102242177
2013	17.59593532917959
2014	17.173365494733904
2015	16.53897000552189
2016	16.34097383770266
2017	16.887924183389913
2018	16.64054190989347
2019	16.57267093321419
2020	16.451039015621152