Year	% of merchandise exports
1966	27.956421315857742
1967	28.41596007786138
1968	30.133601003989668
1969	31.929739289733025
1970	30.598334443152808
1971	30.618704592986056
1972	31.67856243044738
1973	32.25981974907234
1974	29.809525111855503
1975	28.509417030133626
1976	32.2877149589869
1977	36.89436932993621
1978	38.19412459915466
1979	37.355015554181676
1981	38.56607861069051
1983	36.86431094328556
1984	38.76845158526351
1985	41.37138208601985
1986	45.372646088825064
1997	56.87748598765324
1998	57.950668465696296
1999	59.93897908766172
2000	58.4593902527075
2001	58.21670161987825
2002	60.34056725182418
2003	60.53048824305731
2004	63.15279564951455
2005	65.12898580265355
2006	56.116141770641896
2007	55.1175919955231
2008	55.49725346205447
2009	57.880058416326705
2010	54.86360047585966
2011	53.53641672367985
2012	56.77029458085665
2013	58.023528862674944
2014	58.48832889489375
2015	61.31560983969015
2016	60.89564927943278
2017	59.373774841595356
2018	59.41986801294602
2019	59.533221772674565
2020	60.144704050855815
2021	58.98149710450389
2022	58.71267237454809