Year	% of total merchandise exports
1960	84.16529279775261
1961	85.49394000947932
1962	85.25808220938467
1963	82.6502619758874
1964	79.41694266624197
1965	78.01273982200048
1966	80.32742452516297
1967	81.63188684594613
1968	78.77969012690757
1969	79.80510673819427
1970	78.66644128937853
1971	80.17424461729414
1972	78.58266992298819
1973	78.05216244197615
1974	80.2777977952593
1975	79.5107927499108
1976	79.62308061582907
1977	79.1389981446636
1978	82.95628800489477
1979	82.0583642378244
1980	79.07200198315769
1981	75.04362121607326
1982	79.95942778216822
1983	81.27290310847961
1984	81.53449044259122
1985	83.13544967096266
1986	80.4432745835319
1987	79.70630367493233
1988	79.0381538869888
1989	79.53951570785748
1990	80.62281235998805
1991	78.64629177419322
1992	77.51655057838738
1993	76.10722896902116
1994	73.13371547341578
1995	72.33625987023903
1996	71.4974683075727
1997	73.97206131731915
1998	65.53740190769335
1999	67.07774229467141
2000	66.14062280819672
2001	62.37364672482192
2002	60.8313125999468
2003	64.27903947670607
2004	61.917552696753944
2005	62.175130103141505
2006	64.80999332139524
2007	59.508286335081515
2008	57.00909844027054
2009	56.04560061042406
2010	52.60547244178812
2011	52.06328928860956
2012	48.265901987202966
2013	45.269839185616036
2014	43.652037737641024
2015	44.482212347736336
2016	44.354370561085034
2017	43.39802815743111
2018	41.45865084311897
2019	42.3003771453225
2020	44.153406787630345