Year	% of total merchandise exports
1960	1.4505464849547969
1961	1.3229064841968068
1962	1.2385210246495892
1963	1.1263750723722301
1964	1.164386803616226
1965	1.3304535637149026
1966	1.403967023100155
1967	1.5494071146245059
1968	1.5505054343695372
1969	1.5267783384590885
1970	1.6993768354702385
1971	1.6622974423058638
1972	1.8506206930978382
1973	1.6572817506988684
1974	2.344006211622942
1975	3.0548773698715674
1976	3.4542067892121624
1977	3.668928836554333
1978	3.722467924121868
1979	3.672135655237284
1980	3.859417172329561
1981	5.239516304516771
1982	4.728708858128342
1983	5.392125705554579
1984	4.602065956917791
1985	3.3026987566103774
1986	2.641849762786083
1987	2.191679092591543
1988	2.305874843628057
1989	2.4238424809295145
1990	2.4209230296663633
1991	2.050277166028756
1992	2.0574441092574314
1993	2.2752365841904427
1994	2.1518563273257443
1995	2.083861003487195
1996	1.8309777953018636
1997	1.8529697967202152
1998	1.8927656019242016
1999	1.928379550707583
2000	1.6753625697581445
2001	1.7530369562363646
2002	1.7497199027218988
2003	1.758668082260463
2004	1.7020033358938333
2005	1.5179533850104507
2006	1.240088886597898
2007	1.6061103898241096
2008	1.6891834069039708
2009	1.9682565097807647
2010	2.2534869509443
2011	2.125287012801259
2012	2.4574218992211865
2013	2.4973836492442474
2014	2.606817205564475
2015	2.667617761986423
2016	2.651340984662396
2017	2.7752029510467677
2018	2.7017219540428945
2019	2.674665587340561
2020	2.7822885392615033