Year	% of total merchandise exports
1960	13.958840406310596
1961	14.08808049690307
1962	14.280295973711132
1963	14.199626864609268
1964	13.744460307779018
1965	14.074970900626022
1966	13.339604681965131
1967	12.677150433131153
1968	13.095636918309433
1969	12.979556096995108
1970	16.97029760641591
1971	15.686789420198144
1972	17.612084377985123
1973	16.351096377765067
1974	14.456063728592216
1975	16.90273869635586
1976	15.8443448984613
1977	15.505656716469012
1978	14.912871603697637
1979	13.94631926762075
1980	13.822574308320295
1981	13.108249856658613
1982	11.12854769565791
1983	10.57663016607689
1984	10.960436770601335
1985	10.579753345345079
1986	11.651115529368164
1987	10.477530133097853
1988	10.991223645178323
1989	10.015173619030088
1990	9.092015022681215
1991	7.520350266391292
1992	6.4631774782509765
1993	4.733015053475191
1994	4.772115801880716
1995	5.11140514875527
1996	5.630544248257774
1997	3.789232959403175
1998	4.253947256746414
1999	3.5075468766474507
2000	2.930157115447722
2001	3.3373042484656916
2002	2.807194565334369
2003	2.079881255859304
2004	2.284367480658762
2005	2.240578238436337
2006	1.915040525106874
2007	1.8855021936968488
2008	1.950093693215394
2009	3.1300317907247632
2010	2.748671453423492
2011	3.3005334527751153
2012	1.901808039860138
2013	1.7607568050749274
2014	1.5330569108352872
2015	1.2437459286990293
2016	1.1645295117229941
2017	1.092825647254816
2018	0.9517589305010298
2019	0.7975074312389844
2020	0.6878825258458934