Year	% of total merchandise exports
1960	8.07583322088787
1961	7.285760834147931
1962	5.6186563557274045
1963	4.900257908310963
1964	5.239740616273016
1965	5.408207343412527
1966	5.448534813484613
1967	6.24505928853755
1968	6.221023029566011
1969	6.901024819271512
1970	7.546916409999284
1971	6.592684152619498
1972	7.411331988555014
1973	6.736657497771782
1974	7.91100476112084
1975	8.138228207856548
1976	7.134523079084541
1977	8.465696275618354
1978	7.484315467776027
1979	6.750772841183348
1980	7.174845355236653
1981	8.83310018962355
1982	8.82928762122521
1983	7.913490191093281
1984	8.099324658624855
1985	6.407130126448189
1986	5.5743025267997135
1987	5.147557450766955
1988	5.4470948335099765
1989	5.073880284822591
1990	6.369498565111892
1991	4.831442873286361
1992	6.2112675469437715
1993	6.8501193921138945
1994	7.78323578164523
1995	8.63116576199505
1996	7.6568513116689525
1997	7.78619911289309
1998	7.066321155386077
1999	6.133629190012713
2000	6.388943264827625
2001	6.8458230886889195
2002	6.4755318635764985
2003	6.93571383288418
2004	7.246731411462824
2005	7.55500746031509
2006	7.3476967030792055
2007	8.554328687453413
2008	9.326526195985348
2009	9.364821339452636
2010	10.365371386238712
2011	10.608684729671744
2012	11.403798179033673
2013	12.18652823369296
2014	12.112539454494902
2015	12.449906485414672
2016	12.943352555240331
2017	13.362763130938676
2018	13.096600457565785
2019	13.778974385939573
2020	14.485284917893493