|
| year | imports | change |
| 1980 | 1,032.87 | NA |
| 1981 | 1,246.71 | 20.70 % |
| 1982 | 1,270.97 | 1.95 % |
| 1983 | 504.86 | -60.28 % |
| 1984 | 458.56 | -9.17 % |
| 1985 | 1,073.65 | 134.13 % |
| 1986 | 661.39 | -38.40 % |
| 1987 | 202.83 | -69.33 % |
| 1988 | 293.21 | 44.57 % |
| 1989 | 332.90 | 13.53 % |
| 1990 | 347.23 | 4.30 % |
| 1991 | 122.36 | -64.76 % |
| 1992 | 884.05 | 622.52 % |
| 1993 | 911.61 | 3.12 % |
| 1994 | 968.20 | 6.21 % |
| 1995 | 1,385.61 | 43.11 % |
| 1996 | 1,477.10 | 6.60 % |
| 1997 | 1,937.86 | 31.19 % |
| 1998 | 1,962.11 | 1.25 % |
| 1999 | 3,095.29 | 57.75 % |
| 2000 | 3,380.79 | 9.22 % |
| 2001 | 4,249.41 | 25.69 % |
| 2002 | 6,940.15 | 63.32 % |
| 2003 | 8,544.02 | 23.11 % |
| 2004 | 5,097.09 | -40.34 % |
| 2005 | 8,438.19 | 65.55 % |
| 2006 | 8,761.17 | 3.83 % |
| 2007 | 6,322.86 | -27.83 % |
| 2008 | 5,402.63 | -14.55 % |
| 2009 | 6,847.70 | 26.75 % |
| 2010 | 8,918.90 | 30.25 % |
| 2011 | 8,727.62 | -2.14 % |
|
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