Year	% of total merchandise exports
1960	9.23621278672523
1961	8.617594254937163
1962	10.200245959278648
1963	10.388734676689646
1964	10.208403702449067
1965	10.090652422061568
1966	8.047165676486092
1967	8.48756898115221
1968	7.696908621513811
1969	10.477391646578162
1970	10.694219511000522
1971	8.000782472613459
1972	13.96673100384108
1973	14.502686494807012
1974	14.1600853455406
1975	6.171135118299586
1976	4.582150139609356
1977	4.887818689146931
1978	6.228796425435515
1979	6.584883174582057
1980	6.413440334299652
1981	9.565848119994323
1982	11.096311144794608
1983	9.21625653376729
1984	8.60221476234911
1985	7.538978943715903
1986	8.45106299402404
1987	9.854869717595932
1988	8.560557748269135
1989	7.938516913630334
1990	7.093184730478663
1991	9.53711220359103
1992	10.268659187704946
1993	12.015049123107808
1994	12.256083974255748
1995	9.631984964501562
1996	6.747001787518177
1997	7.09524006890944
1998	9.786762316635148
1999	8.467697118899856
2000	14.693497656172186
2001	14.487865214983644
2002	14.500811996368688
2003	16.923154793894767
2004	20.04607670168884
2005	16.64463551609454
2006	17.85230029136502
2007	20.15935438571699
2008	28.302164293766946
2009	29.595164118635115
2010	24.247870413239582
2011	22.67376573519754
2012	25.437755856742445
2013	26.014417720435663
2014	25.450493614530608
2015	27.014850328712537
2016	29.077532335603912
2017	27.047751544588245
2018	23.87015953097043
2019	23.694885060741328
2020	22.507447166664623