Year	% of merchandise exports
1973	91.97889551713327
1974	83.40210514248426
1975	76.95511474322359
1976	68.4610269888301
1977	71.87579117247603
1978	74.74968816655796
1979	76.2364588532623
1980	56.957744496847376
1981	66.14324309032204
1982	67.84983080923338
1983	67.3080198043139
1985	73.66368406105784
1986	78.27948826623056
1987	68.891989496537
1991	70.2404311856832
1992	70.26893828164576
1993	63.11581963537666
1994	65.99806127203759
1995	67.8060735301682
1996	74.58975719711059
1997	71.05290314065242
1998	75.85903336008435
1999	81.01170223216101
2000	78.80894163221596
2001	78.47739103198778
2002	75.12144507600034
2003	73.3944953189863
2004	73.02099069013335
2005	73.47899784335416
2006	66.06077363791363
2007	65.56413077469946
2008	59.78945587878104
2009	61.48021538936551
2010	49.57723968691935
2011	40.17047121533631
2012	46.91186422739398
2013	53.569210008107795
2014	44.141695638464554
2015	43.928164157239806
2016	36.25677603523699
2017	30.12041403846652
2018	31.483293130384116
2019	38.37256000343837
2020	41.625643205162156