Year	% of total merchandise exports
1961	0.06153846153846154
1962	0.036153289949385395
1963	0.027559597629874606
1964	0.027192386131883073
1966	0.11931750387781886
1967	0.012359411692003462
1968	0.02365464222353637
1969	0.07282437188979245
1970	0.23065833733781835
1971	0.1789228842368939
1972	0.07492039707810451
1973	0.08481314603763583
1974	0.654940119760479
1975	1.8825599296239277
1976	0.9926213592233009
1977	0.874120327184349
1978	1.4800043211804998
1979	1.2530129909083203
1980	2.2541865315594753
1981	1.8863010250457983
1982	1.8795494659171048
1983	1.807601205202552
1984	1.175653619238717
1985	1.4021598028741025
1986	1.5194375688998898
1987	1.499540938942246
1988	1.2374002669013884
1989	1.5096024138505226
1990	1.0738332956537227
1991	1.6472767888024018
1992	2.018231948384518
1993	2.235357642845111
1994	1.6996518635648
1995	1.2418000389664656
1996	0.9580780079758778
1997	0.8799489600758086
1998	0.6627411894260227
1999	0.3547965121459904
2000	0.3679420661578976
2001	0.5277506835044349
2002	0.5199428896288036
2003	0.5555662881733251
2004	0.5095520343142992
2005	0.5284304009919064
2006	0.6178622005963036
2007	0.7700054132565393
2008	0.9431685955455583
2009	0.9839025347254744
2010	0.9216440508963031
2011	0.9431238306025113
2012	0.8464795290963211
2013	1.0446683117184246
2014	0.995959199525642
2015	0.8674192156354452
2016	0.9379101072184272
2017	1.2631769983280916
2018	0.9192249966660592
2019	1.0283729159859332
2020	0.8439230690593688