Year	% of total merchandise exports
1960	73.29412891712622
1961	74.71140673422576
1962	73.3581198326315
1963	72.16821539083224
1964	70.91458091458091
1965	70.44513326971934
1966	73.18752115092512
1967	74.74032971248216
1968	72.13297206781662
1969	73.9761566110778
1970	72.70052371078376
1971	75.55390108504764
1972	73.59459465450358
1973	73.56371452308788
1974	74.64642346172803
1975	72.87068298990866
1976	74.12716449680661
1977	74.39038910224248
1978	78.007789834779
1979	76.6061536924559
1980	68.83690980971753
1981	69.25171066097208
1982	75.18236496118645
1983	74.98670023979929
1984	75.52881240647055
1985	77.70156078494426
1986	73.63567660431232
1987	74.42844114640887
1988	74.9668383908141
1989	73.06656883320024
1990	74.60309648573701
1991	72.80261347068766
1992	74.37096483908466
1993	72.43365275036794
1994	70.63167551467417
1995	67.87836251248788
1996	65.0159555149175
1997	67.10199967116232
1998	69.61438369079966
1999	67.2751308730055
2000	64.67283898376131
2001	64.60257084606226
2002	64.56254313378983
2003	63.956351933479894
2004	59.872270705719124
2005	58.96973431014918
2006	59.7862458285124
2007	58.85144484169136
2008	55.31415518063027
2009	53.48820364593065
2010	54.02655001170562
2011	53.88290099490114
2012	51.48479104147326
2013	48.74370535966986
2014	46.93038461429704
2015	48.82526283630598
2016	49.46297556483369
2017	49.733551753750554
2018	47.385963127024695
2019	48.61697951310478
2020	50.12036485130085