|
| year | imports | change |
| 1990 | 115.02 | NA |
| 1991 | 142.50 | 23.89 % |
| 1992 | 156.69 | 9.96 % |
| 1993 | 174.95 | 11.65 % |
| 1994 | 187.63 | 7.25 % |
| 1995 | 243.00 | 29.51 % |
| 1996 | 283.90 | 16.83 % |
| 1997 | 338.46 | 19.22 % |
| 1998 | 349.41 | 3.23 % |
| 1999 | 425.05 | 21.65 % |
| 2000 | 507.83 | 19.47 % |
| 2001 | 556.35 | 9.55 % |
| 2002 | 604.24 | 8.61 % |
| 2003 | 729.25 | 20.69 % |
| 2004 | 767.47 | 5.24 % |
| 2005 | 938.43 | 22.28 % |
| 2006 | 1,067.18 | 13.72 % |
| 2007 | 1,265.41 | 18.57 % |
| 2008 | 1,312.06 | 3.69 % |
| 2009 | 1,266.26 | -3.49 % |
| 2010 | 1,343.28 | 6.08 % |
| 2011 | 1,550.51 | 15.43 % |
|
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