Year	% of merchandise exports
1974	13.517611470890882
1975	13.092245662542648
1976	15.05868760407193
1977	17.378745505813125
1978	15.809461168730827
1979	16.523653789369266
1981	10.171946037025716
1996	26.694014766713508
1997	28.59135501001267
1998	27.799619172098847
1999	28.42094132782475
2000	28.970890666118937
2001	29.076509385736117
2002	34.67158562050055
2003	30.75152061675226
2006	28.89097630829821
2007	28.0864988600225
2008	29.317298377455142
2009	27.93607262071546
2010	28.327913896994794
2011	24.83522247779409
2012	25.538535289913884
2013	26.961833846732222
2014	29.492854781766408
2015	27.70646891896365
2016	26.552749015702766
2017	23.996123638203105
2018	24.039959694484708
2019	23.885146800218415
2020	22.45614555530197
2021	21.360851785173146
2022	20.757790471269292