Year	% of total imports
1995	6.352431565735872
1996	6.6215934456435255
1997	5.982834927266752
1998	5.554932768585688
1999	5.401847311746875
2000	5.276957066230549
2001	5.4618527568367075
2002	5.27063332991546
2003	5.52716458248518
2004	5.719255206011011
2005	5.9053605307077435
2006	6.066900400200768
2007	6.602581109447849
2008	6.66757986949725
2009	7.328405646445289
2010	7.44257363063498
2011	7.25592432657076