|
| year | imports | change |
| 1990 | 23.00 | NA |
| 1991 | 25.00 | 8.70 % |
| 1992 | 27.97 | 11.88 % |
| 1993 | 30.16 | 7.83 % |
| 1994 | 30.09 | -0.24 % |
| 1995 | 30.26 | 0.57 % |
| 1996 | 32.45 | 7.25 % |
| 1997 | 32.03 | -1.31 % |
| 1998 | 31.75 | -0.88 % |
| 1999 | 31.85 | 0.33 % |
| 2000 | 31.15 | -2.22 % |
| 2001 | 34.18 | 9.75 % |
| 2002 | 34.82 | 1.86 % |
| 2003 | 34.71 | -0.30 % |
| 2004 | 34.57 | -0.41 % |
| 2005 | 32.91 | -4.80 % |
| 2006 | 34.47 | 4.72 % |
| 2007 | 35.56 | 3.18 % |
| 2008 | 32.28 | -9.24 % |
| 2009 | 43.08 | 33.48 % |
| 2010 | 57.60 | 33.69 % |
| 2011 | 45.77 | -20.54 % |
|
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