Year	% of total merchandise exports
1960	2.0242914979757085
1961	15.837104072398189
1962	9.13978494623656
1963	12.71860095389507
1964	19.988642816581486
1965	12.981624184943689
1966	16.87315634218289
1967	12.281835811247575
1968	11.343283582089553
1969	11.604723190089043
1970	17.43028869839393
1971	11.402187120291616
1972	12.264643441339226
1973	11.261145771016723
1974	6.562456171666815
1975	4.162410348498371
1976	5.219522271463982
1977	6.512905410489879
1978	4.690242107448154
1979	2.9491187310700515
1980	2.9206776959098177
1981	2.089022522051058
1982	1.1290235032296587
1983	1.3660496632648846
1984	2.638734529602814
1985	2.463685820526441
1986	1.5760132590025615
1987	1.0133963169354543
1988	2.228962678827324
1989	1.2470226696334212
1990	3.705477516497492
1991	5.203849279194709
1992	4.480650201433019
1993	3.820014920299545
1994	3.833915717543668
1995	11.077262974193726
1996	5.915890634879519
1997	6.9891625071969345
1998	13.246885436306782
1999	11.482893514940187
2000	12.681675736271018
2001	11.09536501920249
2002	10.73588592885283
2003	11.779881941840925
2004	16.673634342996102
2005	9.221050415734194
2006	10.467246101118059
2007	7.703229745243556
2008	6.256558213029681
2009	5.197312590600077
2010	8.009791481010426
2011	8.472283484933232
2012	6.231345119329322
2013	11.699346168847063
2014	15.6631741674816
2015	19.254810386907444
2016	14.075527359372089
2017	14.45168810106196
2018	11.709420298739616
2019	11.709420659264277
2020	11.709420059640564