|
| year | imports | change |
| 1980 | 3,174.66 | NA |
| 1981 | 4,958.20 | 56.18 % |
| 1982 | 10,538.10 | 112.54 % |
| 1983 | 13,651.02 | 29.54 % |
| 1984 | 15,128.12 | 10.82 % |
| 1985 | 12,658.94 | -16.32 % |
| 1986 | 13,847.24 | 9.39 % |
| 1987 | 12,036.14 | -13.08 % |
| 1988 | 16,244.76 | 34.97 % |
| 1989 | 14,251.78 | -12.27 % |
| 1990 | 12,258.80 | -13.98 % |
| 1991 | 1,213.65 | -90.10 % |
| 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 | | NA |
| 2007 | | NA |
| 2008 | | NA |
| 2009 | | NA |
| 2010 | | NA |
| 2011 | | NA |
|
|
