|
| year | imports | change |
| 1980 | 3,396.22 | NA |
| 1981 | 3,085.37 | -9.15 % |
| 1982 | 2,873.73 | -6.86 % |
| 1983 | 2,644.45 | -7.98 % |
| 1984 | 2,478.00 | -6.29 % |
| 1985 | 3,967.22 | 60.10 % |
| 1986 | 4,130.36 | 4.11 % |
| 1987 | 3,045.69 | -26.26 % |
| 1988 | 3,287.09 | 7.93 % |
| 1989 | 3,431.50 | 4.39 % |
| 1990 | 2,470.28 | -28.01 % |
| 1991 | 4,443.42 | 79.88 % |
| 1992 | 3,222.06 | -27.49 % |
| 1993 | 3,202.22 | -0.62 % |
| 1994 | 3,116.23 | -2.69 % |
| 1995 | 2,817.51 | -9.59 % |
| 1996 | 2,857.19 | 1.41 % |
| 1997 | 2,759.09 | -3.43 % |
| 1998 | 2,081.16 | -24.57 % |
| 1999 | 2,012.82 | -3.28 % |
| 2000 | 2,089.98 | 3.83 % |
| 2001 | 1,851.88 | -11.39 % |
| 2002 | 1,591.74 | -14.05 % |
| 2003 | 1,791.26 | 12.53 % |
| 2004 | 2,105.42 | 17.54 % |
| 2005 | 2,599.25 | 23.46 % |
| 2006 | 2,738.14 | 5.34 % |
| 2007 | 2,953.09 | 7.85 % |
| 2008 | 3,042.38 | 3.02 % |
| 2009 | 1,899.28 | -37.57 % |
| 2010 | 2,280.68 | 20.08 % |
| 2011 | 2,053.61 | -9.96 % |
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