Year	% of total merchandise exports
1960	1.6699748771323308
1961	2.6644149577804583
1962	1.9690660558197552
1963	1.7575209149468196
1964	1.7257218516655675
1965	1.1846329943828493
1966	1.1264148158505987
1967	1.3211631519644578
1968	1.112574574490277
1969	1.0256521694779566
1970	0.7829220290397277
1971	0.7028931636313924
1972	0.6308822833252188
1973	0.6765291500991122
1974	0.6599261456849317
1975	0.6245676430860863
1976	0.7022787466341541
1977	0.8278603249105381
1978	0.9449679186221136
1979	1.108633459128428
1980	1.1796989786706134
1981	1.1421446495262757
1982	1.2671832266545484
1983	1.1256719558335444
1984	1.0663448693303899
1985	1.127081401983825
1986	0.9140030787837287
1987	1.0468575139082792
1988	1.0726051193738844
1989	1.1634688771165242
1990	1.2773524507282386
1991	1.335265899991246
1992	1.474584157905582
1993	1.6347177640622397
1994	1.9090063946513085
1995	2.1782858272591072
1996	2.346143788317865
1997	2.534706505771791
1998	2.498872833125802
1999	2.662791268586258
2000	3.000662718684933
2001	3.3186689871848563
2002	3.7187399680703157
2003	4.074409443076524
2004	4.283807926684115
2005	4.573545517540252
2006	4.728364791308708
2007	5.092771295175906
2008	5.442874885363929
2009	6.055145947783401
2010	6.371268966278233
2011	6.867761383555888
2012	7.425659622276107
2013	8.1163369558926
2014	8.276576805030667
2015	8.481280666110084
2016	8.747117273696398
2017	9.298382558695387
2018	9.64577975550448
2019	10.425056761889493
2020	10.930665973050694