|
| year | imports | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | .41 | NA |
| 1988 | .43 | 4.71 % |
| 1989 | .41 | -4.50 % |
| 1990 | .43 | 5.00 % |
| 1991 | .51 | 19.05 % |
| 1992 | .51 | -0.27 % |
| 1993 | .51 | 0.27 % |
| 1994 | .53 | 4.00 % |
| 1995 | .53 | -0.27 % |
| 1996 | .55 | 3.85 % |
| 1997 | .55 | 0.27 % |
| 1998 | .57 | 3.70 % |
| 1999 | .57 | 0.00 % |
| 2000 | .57 | -0.27 % |
| 2001 | .59 | 3.85 % |
| 2002 | .61 | 3.45 % |
| 2003 | .61 | 0.00 % |
| 2004 | .57 | -6.92 % |
| 2005 | .57 | 0.27 % |
| 2006 | .57 | 0.00 % |
| 2007 | .63 | 10.72 % |
| 2008 | .65 | 3.23 % |
| 2009 | .49 | -25.00 % |
| 2010 | .49 | 0.00 % |
|
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