|
| year | imports | change |
| 1980 | 5,680.21 | NA |
| 1981 | 8,186.87 | 44.13 % |
| 1982 | 10,131.34 | 23.75 % |
| 1983 | 12,262.11 | 21.03 % |
| 1984 | 14,493.19 | 18.19 % |
| 1985 | 21,572.23 | 48.84 % |
| 1986 | 22,574.23 | 4.64 % |
| 1987 | 22,874.06 | 1.33 % |
| 1988 | 26,188.71 | 14.49 % |
| 1989 | 27,166.46 | 3.73 % |
| 1990 | 26,581.14 | -2.15 % |
| 1991 | 32,465.54 | 22.14 % |
| 1992 | 33,189.49 | 2.23 % |
| 1993 | 39,658.96 | 19.49 % |
| 1994 | 44,480.47 | 12.16 % |
| 1995 | 50,566.33 | 13.68 % |
| 1996 | 51,791.00 | 2.42 % |
| 1997 | 55,786.88 | 7.72 % |
| 1998 | 65,207.23 | 16.89 % |
| 1999 | 57,584.75 | -11.69 % |
| 2000 | 67,944.27 | 17.99 % |
| 2001 | 71,613.86 | 5.40 % |
| 2002 | 75,852.25 | 5.92 % |
| 2003 | 77,583.98 | 2.28 % |
| 2004 | 84,925.38 | 9.46 % |
| 2005 | 81,833.39 | -3.64 % |
| 2006 | 84,122.89 | 2.80 % |
| 2007 | 94,082.27 | 11.84 % |
| 2008 | 107,062.00 | 13.80 % |
| 2009 | 109,874.00 | 2.63 % |
| 2010 | 125,807.90 | 14.50 % |
| 2011 | 138,164.80 | 9.82 % |
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