Year	% of total merchandise exports
1960	0.7951763587078445
1961	0.8348514599480321
1962	0.6564082636722868
1963	0.7770446716057546
1964	2.2404403698290203
1965	2.371083810976288
1966	1.611656231420324
1967	1.6575978174353274
1968	1.7350516590133942
1969	1.479206036706065
1970	1.5191245044396078
1971	1.6891876512266641
1972	1.2970357860363468
1973	1.3285449535074856
1974	1.4752371218257823
1975	1.2961829034947316
1976	0.9930985186236067
1977	1.3252243665199004
1978	1.4219136982513874
1979	1.1576576051461949
1980	1.2936165895977665
1981	2.149447366509943
1982	1.9727288843460886
1983	1.6739423125729513
1984	1.7838637417545988
1985	1.7793677694059362
1986	1.3139548677848483
1987	1.52736255325909
1988	1.6499993094474648
1989	1.1642084617223392
1990	1.333260216835268
1991	1.1938538441836226
1992	1.325304905033197
1993	1.2435605904426117
1994	1.1761776059233893
1995	1.24898647515218
1996	1.303955310000688
1997	1.3245915743399082
1998	1.3912098950081604
1999	1.3006002841397732
2000	1.2485867422366828
2001	1.4084351863888858
2002	1.4370851845812687
2003	1.5041601722906517
2004	1.5416028917685094
2005	1.6436665168273876
2006	1.7255231163806686
2007	1.8936111312096344
2008	2.102500842027123
2009	2.443239042804583
2010	2.501136101167766
2011	2.5845958501496633
2012	2.62096576438433
2013	2.717271788451916
2014	2.8912311632313994
2015	3.0503553166236816
2016	2.8362212868600296
2017	2.6905993591892297
2018	2.576200527690546
2019	2.729633813006463
2020	2.752317167614592