|
| year | imports | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | 35.15 | NA |
| 1987 | 29.84 | -15.11 % |
| 1988 | 26.59 | -10.89 % |
| 1989 | 31.31 | 17.75 % |
| 1990 | 34.67 | 10.74 % |
| 1991 | 34.15 | -1.52 % |
| 1992 | 39.04 | 14.33 % |
| 1993 | 50.99 | 30.61 % |
| 1994 | 63.79 | 25.09 % |
| 1995 | 71.06 | 11.40 % |
| 1996 | 65.53 | -7.79 % |
| 1997 | 62.41 | -4.75 % |
| 1998 | 53.16 | -14.82 % |
| 1999 | 50.20 | -5.56 % |
| 2000 | 86.95 | 73.19 % |
| 2001 | 34.20 | -60.66 % |
| 2002 | 35.19 | 2.88 % |
| 2003 | 39.84 | 13.24 % |
| 2004 | 35.96 | -9.74 % |
| 2005 | 39.62 | 10.18 % |
| 2006 | 47.54 | 19.99 % |
| 2007 | 50.61 | 6.46 % |
| 2008 | 46.64 | -7.85 % |
| 2009 | 54.03 | 15.85 % |
| 2010 | 78.58 | 45.43 % |
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