Year	% of total exports
1995	7.714637000035422
1996	8.837835046212259
1997	9.359678918815534
1998	9.883007760176406
1999	10.096648772581373
2000	9.022756451464513
2001	9.067389257555588
2002	10.018332378667669
2003	14.09239017030034
2004	12.956048757531894
2005	12.672985257803363
2006	11.659601713297704
2007	10.958444970567973
2008	8.924506913725997
2009	10.396053630563873
2010	9.549468144522868
2011	8.434235446032236
2012	9.49845821748665
2013	9.211202411027006
2014	9.492513218458194
2015	9.486590609371444
2016	9.626961973815108
2017	9.317282304608762
2018	8.789393303746301
2019	8.564402542652873
2020	2.8875545784632557