Year	% of total exports
1995	13.817976821710259
1996	16.228968619058758
1997	15.597751162128754
1998	13.895499772508632
1999	14.132866924488418
2000	12.361506847529299
2001	11.28853827019503
2002	10.302534108981384
2003	9.958817217637446
2004	8.565575709873645
2005	8.553615881611456
2006	7.9258663389681585
2007	7.699895292560739
2008	7.755694273333464
2009	8.116717006518618
2010	6.842454462293183
2011	6.507522741520121
2012	6.32120909967476
2013	6.358628603637821
2014	6.26274761922774
2015	6.135747255177583
2016	6.4016395389134635
2017	6.489008840619367
2018	6.395931546195366
2019	6.532577820271927