Year	% of total merchandise exports
1960	2.767820474980269
1961	2.713257988341974
1962	2.162390054720636
1963	2.2170820908874638
1964	2.0622164132132315
1965	2.338292788324107
1966	2.1526373785907458
1967	2.037274459975716
1968	2.107156391398518
1969	2.7403386680515984
1970	2.750877776483124
1971	2.7120471950841036
1972	2.3774559776252118
1973	2.140481784773409
1974	2.4934658302463126
1975	3.1039720412984204
1976	1.918247766797126
1977	1.9558236036763896
1978	1.9842302537744696
1979	1.4704546156251992
1980	1.7961541254918112
1981	1.6078125288803147
1982	1.9612768696725977
1983	2.7822891267743346
1984	2.505320490369014
1985	2.140170939547879
1986	1.8139300530382338
1987	1.6021142459373896
1988	1.6228971562186743
1989	1.7018008915396918
1990	1.8775176210125053
1991	2.1989683339752766
1992	2.067806399459662
1993	2.0475101070269135
1994	1.7057179737408952
1995	1.971634037565814
1996	1.8396650663830612
1997	1.8203282328803823
1998	1.894373721199754
1999	1.672991276569869
2000	1.8437512883160072
2001	2.3790368411472507
2002	2.4621784785066714
2003	2.239269516820613
2004	2.668359146497816
2005	2.5145722506267574
2006	2.45915187841618
2007	2.639853877984627
2008	3.045408166105336
2009	3.334710381807619
2010	3.024555948243307
2011	2.5665187801321157
2012	3.018503734677489
2013	3.0775853751362394
2014	2.941482859203307
2015	2.7152387035384558
2016	2.480076506633549
2017	2.1787706208430713
2018	2.1726609360843576
2019	2.535649150042492
2020	2.2727670011822307