Year	% of total merchandise exports
1960	1.3885385166054243
1961	1.646557307508606
1962	1.801430697301901
1963	1.7487661539731665
1964	2.41803233674691
1965	2.544424658357223
1966	2.5661390179214973
1967	2.1200527224233525
1968	2.2066989997380015
1969	2.2177849858803036
1970	2.4619895181637115
1971	3.9685905973955395
1972	3.735719319801064
1973	4.730403879980618
1974	5.9722525956618515
1975	6.210237360557894
1976	4.70653008968559
1977	5.788852677263943
1978	5.738727638480665
1979	5.768133503166979
1980	6.249973080634502
1981	6.9221434744424215
1982	6.58184713163905
1983	7.187860360295753
1984	6.934316073534129
1985	8.118817811869661
1986	7.111422845424411
1987	6.626961252641039
1988	7.500363114056381
1989	7.103293213006438
1990	6.751613090028583
1991	5.7526216123303495
1992	6.4841834877088385
1993	6.644137653777106
1994	6.724998437002269
1995	7.512853933877399
1996	7.375224247129822
1997	7.173802801771961
1998	6.476072733934375
1999	5.716688670918571
2000	5.3037627542579475
2001	6.598128196127416
2002	7.121237574786793
2003	8.824050436353795
2004	9.303223527696169
2005	10.286826243543498
2006	10.865128957924242
2007	12.122468720580887
2008	12.455671006212429
2009	14.890690063989329
2010	16.15802477178762
2011	16.372606991118786
2012	16.302557400958037
2013	17.338498346195376
2014	17.051072853151545
2015	16.9716507279824
2016	17.568588737564813
2017	19.053278400020478
2018	20.089118675265944
2019	20.180904017808228
2020	22.648209184261074