|
| year | imports | change |
| 1980 | 282.19 | NA |
| 1981 | 227.08 | -19.53 % |
| 1982 | 119.05 | -47.57 % |
| 1983 | 190.70 | 60.19 % |
| 1984 | 190.70 | 0.00 % |
| 1985 | 285.50 | 49.71 % |
| 1986 | 305.34 | 6.95 % |
| 1987 | 372.58 | 22.02 % |
| 1988 | 223.77 | -39.94 % |
| 1989 | 63.93 | -71.43 % |
| 1990 | | NA |
| 1991 | .04 | NA |
| 1992 | | NA |
| 1993 | | NA |
| 1994 | | NA |
| 1995 | | NA |
| 1996 | | NA |
| 1997 | | NA |
| 1998 | | NA |
| 1999 | | NA |
| 2000 | | NA |
| 2001 | | NA |
| 2002 | | NA |
| 2003 | | NA |
| 2004 | | NA |
| 2005 | | NA |
| 2006 | 104.91 | NA |
| 2007 | 42.01 | -59.96 % |
| 2008 | | NA |
| 2009 | | NA |
| 2010 | 27.56 | NA |
| 2011 | | NA |
|
|