Year	% of total merchandise exports
1960	1.1436016213086275
1961	0.35661530124378327
1962	0.8211929345791282
1963	0.5074361612571321
1964	0.5589722854731048
1965	0.6041400986719223
1966	0.6636650859407318
1967	0.6931678719851675
1968	0.626130013149244
1969	0.7374706424610766
1970	0.8697383256993538
1971	0.9371821645011224
1972	0.6938169192533898
1973	0.7214220498101865
1974	1.1125439242532535
1975	1.1881879106315383
1976	0.570350261606722
1977	0.4626251804418824
1978	0.5575411650273644
1979	0.8612720004768777
1980	1.0256217867253166
1981	1.355926387224693
1982	1.2296444192584008
1983	1.0697189019122233
1984	0.8918270498047726
1985	1.0099136849952293
1986	1.2053830682261835
1987	0.9464213999270845
1988	1.234705882331255
1989	1.1400105100282012
1990	1.0081121438919516
1991	0.7660451938536964
1992	1.2621621600035013
1993	1.1982093910630771
1994	0.8151126150663203
1995	1.1249793991163854
1996	0.8940800213230189
1997	0.966290888862231
1998	0.8810369391291847
1999	1.4104723231020584
2000	1.0820207394756662
2001	0.9006039115971592
2002	1.1085595424003447
2003	1.3766392774233782
2004	1.1597562946706976
2005	1.1746351227623695
2006	1.1534287657673912
2007	1.158005426104246
2008	1.2909022380395696
2009	1.5364728843070512
2010	1.383509255495246
2011	1.1137010616061902
2012	1.5178344248770728
2013	1.3516626127903477
2014	1.3826326866521286
2015	1.503444279624549
2016	1.7165068556035703
2017	1.6155516168094082
2018	1.6051644098262978
2019	1.6493632965194338
2020	1.706204902709456