|
| year | imports | change |
| 1980 | 15.43 | NA |
| 1981 | 19.84 | 28.57 % |
| 1982 | 13.23 | -33.33 % |
| 1983 | 15.43 | 16.67 % |
| 1984 | 20.94 | 35.71 % |
| 1985 | 37.48 | 78.95 % |
| 1986 | 30.86 | -17.65 % |
| 1987 | 36.38 | 17.86 % |
| 1988 | 36.38 | 0.00 % |
| 1989 | 38.58 | 6.06 % |
| 1990 | 61.73 | 60.00 % |
| 1991 | 29.73 | -51.84 % |
| 1992 | 69.00 | 132.11 % |
| 1993 | 47.18 | -31.63 % |
| 1994 | 47.42 | 0.51 % |
| 1995 | 29.30 | -38.21 % |
| 1996 | 14.58 | -50.23 % |
| 1997 | 11.01 | -24.49 % |
| 1998 | 4.32 | -60.75 % |
| 1999 | .86 | -80.11 % |
| 2000 | .42 | -51.28 % |
| 2001 | .93 | 122.57 % |
| 2002 | 11.63 | 1,147.03 % |
| 2003 | 14.63 | 25.82 % |
| 2004 | 13.76 | -5.91 % |
| 2005 | 4.41 | -67.96 % |
| 2006 | 7.72 | 75.00 % |
| 2007 | 13.23 | 71.43 % |
| 2008 | 7.72 | -41.67 % |
| 2009 | 6.61 | -14.29 % |
| 2010 | 13.23 | 100.00 % |
| 2011 | 12.13 | -8.33 % |
|
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