Year	% of merchandise exports
1973	1.4931423444832
1974	1.622593155980101
1975	3.0346402381970763
1977	36.06732423600362
1978	17.450723147995205
1981	8.701194802241547
1999	16.534083039374302
2000	27.227369402682548
2005	18.67949822976602
2007	37.97023880922147
2009	48.30508376938217
2010	50.65432006177698
2011	58.689528949777014
2012	56.84034196958159
2013	37.79389634579537
2014	25.67788318138725
2015	52.10458920421609
2016	54.78122070655442
2017	52.27173239015579
2018	42.75333881620638
2019	77.9266050674273
2020	25.698957067893136
2021	76.65782860975801
2022	55.490388549886305
2023	79.5397138175244