Year	% of merchandise exports
1974	27.750027867734513
1975	28.019319048451067
1976	27.310983877681057
1977	27.079186105011512
1978	26.27628718409884
1979	23.341864526153277
1981	18.45634409032603
1996	18.979874713929245
1997	19.4879368157348
1998	20.044911060255547
1999	19.824297100441193
2000	16.650910847212202
2001	17.091876264465494
2002	16.055918819159416
2003	16.962714704706467
2006	13.814599471929112
2007	11.576725257301591
2008	13.527642501088701
2009	14.206029577453496
2010	13.32817568321521
2011	11.660318516318274
2012	12.157495091954916
2013	12.92195297860648
2014	12.945727393898675
2015	14.90139178681065
2016	15.443426477235379
2017	14.792371236289943
2018	14.688567249570324
2019	13.302865215940797
2020	13.741003082026229
2021	13.359073258700064
2022	12.815715777732088