|
| year | imports | change |
| 1984 | | NA |
| 1985 | | NA |
| 1986 | | NA |
| 1987 | .41 | NA |
| 1988 | .76 | 84.08 % |
| 1989 | .54 | -28.53 % |
| 1990 | 1.82 | 236.31 % |
| 1991 | 1.76 | -3.44 % |
| 1992 | 2.14 | 21.86 % |
| 1993 | 2.27 | 5.84 % |
| 1994 | 3.20 | 40.97 % |
| 1995 | 2.50 | -21.83 % |
| 1996 | 3.82 | 52.55 % |
| 1997 | 3.41 | -10.77 % |
| 1998 | 3.45 | 1.30 % |
| 1999 | 4.48 | 29.91 % |
| 2000 | 5.53 | 23.41 % |
| 2001 | 6.51 | 17.67 % |
| 2002 | 7.66 | 17.70 % |
| 2003 | 9.31 | 21.58 % |
| 2004 | 7.32 | -21.38 % |
| 2005 | 8.33 | 13.73 % |
| 2006 | .25 | -96.95 % |
| 2007 | 2.73 | 974.99 % |
| 2008 | 3.78 | 38.37 % |
| 2009 | | NA |
| 2010 | | NA |
|
|