Year	% of total merchandise exports
1960	4.380242311276794
1961	4.086636697997548
1962	3.095752339812815
1963	2.7801662367440527
1964	2.860256061018796
1965	4.469536579628323
1966	3.3979612232660403
1967	4.047705095771594
1968	4.296875
1969	4.451742886319101
1970	5.098385404672348
1971	4.686996056889
1972	3.8001670785617323
1973	2.7594242631939685
1974	3.5646744760975504
1975	3.9129404247864215
1976	3.085031943392086
1977	2.4910547162650074
1978	2.710864167857773
1979	2.6620395791693205
1980	3.2976746703227318
1981	3.4583046903918357
1982	3.014999337986344
1983	2.8776133427296218
1984	2.714659505611788
1985	1.4566503403091406
1986	1.6298882681564246
1987	1.343460716828863
1988	1.3839067340616338
1989	1.8974733407249158
1990	1.2053311120366514
1991	1.2921856816516528
1992	1.3183784404547716
1993	1.2939422798227815
1994	1.2159515322570833
1995	1.3098186445401439
1996	1.4637768096844301
1997	1.7189263348896904
1998	1.6033895843744261
1999	1.3829226307709008
2000	1.2233757524669635
2001	1.0045753276574942
2002	0.9826078412105729
2003	0.9631731666474926
2004	1.073462754606674
2005	1.2812158140519685
2006	1.3716274721818957
2007	1.7416862706628586
2008	1.9422479709804534
2009	1.7209683538864329
2010	1.9512044810254865
2011	1.7299875409972552
2012	1.9564742634142638
2013	1.88681228898581
2014	1.566515264895092
2015	1.2536322628221337
2016	1.1065670260035396
2017	1.106192109862755
2018	1.0516387955454571
2019	0.8654233078824158
2020	0.7823646476501505