Year	% of merchandise exports
1970	42.0262193049395
1971	46.88875933283447
1972	50.07784619122728
1973	44.38198814182877
1974	62.27902298304703
1975	63.6981617511931
1976	49.8213621510694
1977	41.709473616905875
1978	48.39256290523162
1979	47.37019159811714
1981	60.7407414922093
1997	44.862035268842874
1998	45.448455704681926
1999	50.12053526049039
2000	43.56613044067391
2001	44.35713457471345
2002	48.241634313909096
2003	47.52619134203083
2004	42.42774972561724
2005	54.84866155109821
2006	51.57157480888978
2007	44.354983117303945
2008	45.666478199905534
2009	43.45858422736858
2010	39.79706076821065
2011	36.66274544112376
2012	29.298917337491538
2013	37.50805800721679
2014	41.19479596584627
2015	40.50198453537603
2016	32.50501944881259
2017	33.367542092694045
2018	29.360636528535476
2019	28.050039604771754
2020	15.305258070923838
2021	8.000204643529099
2022	3.2546246834586867
2023	4.899646536425696