Year	% of total merchandise exports
1960	21.62865510386792
1961	21.88630624510832
1962	22.5509141194641
1963	21.966298300282343
1964	21.843453705337897
1965	20.35016062030363
1966	20.55757233815629
1967	19.152882181978676
1968	18.207449332196884
1969	16.670175183431635
1970	17.210184200082043
1971	17.07213672712589
1972	16.179051630639123
1973	16.740412524340137
1974	20.006995135348127
1975	21.559835334615315
1976	18.57024606313267
1977	17.634817781590993
1978	18.339060512000323
1979	17.400854867841065
1980	20.426500473338212
1981	20.731962956958103
1982	19.198678024137553
1983	16.77616926824534
1984	16.56584126576076
1985	16.35095790124068
1986	15.36500613157639
1987	15.122867448899784
1988	15.693726462978978
1989	15.788234420107845
1990	15.913041987595275
1991	16.94850115065645
1992	19.264459370007117
1993	19.785902020001643
1994	20.211127018357626
1995	19.468166581330212
1996	20.35206724472779
1997	21.787408836389147
1998	21.928570014644055
1999	20.828218171325467
2000	21.965154618151423
2001	22.610927317678808
2002	22.928448702873496
2003	23.076430175707387
2004	23.50968005974211
2005	23.595196826249087
2006	24.931555523871875
2007	25.688392880962773
2008	27.06550566593705
2009	29.238285197766732
2010	30.619274405099304
2011	31.43142341814115
2012	31.73774061371295
2013	32.73445677136429
2014	32.6628031308369
2015	32.643127484188376
2016	32.817946247544604
2017	33.36705091659495
2018	33.14180913338922
2019	32.43649036805973
2020	33.273462829014946