|
| year | imports | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | .90 | NA |
| 1988 | 2.47 | 174.03 % |
| 1989 | 2.53 | 2.76 % |
| 1990 | 2.55 | 0.81 % |
| 1991 | 2.60 | 1.60 % |
| 1992 | 2.65 | 2.08 % |
| 1993 | 2.70 | 1.82 % |
| 1994 | 2.72 | 0.76 % |
| 1995 | 2.74 | 0.75 % |
| 1996 | 2.75 | 0.47 % |
| 1997 | 2.76 | 0.27 % |
| 1998 | 2.76 | 0.00 % |
| 1999 | 2.76 | 0.00 % |
| 2000 | 2.79 | 1.20 % |
| 2001 | 2.84 | 1.74 % |
| 2002 | 3.02 | 6.47 % |
| 2003 | 3.07 | 1.35 % |
| 2004 | 3.06 | -0.27 % |
| 2005 | 3.09 | 0.94 % |
| 2006 | 2.58 | -16.56 % |
| 2007 | 2.68 | 3.97 % |
| 2008 | 1.93 | -27.88 % |
| 2009 | 2.64 | 36.54 % |
| 2010 | 2.64 | 0.03 % |
|
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