| 序号 | 时间 (年) |
数据 (万美元) |
|---|---|---|
| 1 | 2018 | |
| 2 | 2017 | |
| 3 | 2016 | |
| 4 | 2015 | |
| 5 | 2014 | |
| 6 | 2013 | |
| 7 | 2012 | |
| 8 | 2011 | |
| 9 | 2010 | |
| 10 | 2009 | |
| 11 | 2008 | -44127.26 |
| 12 | 2007 | -34662.10 |
| 13 | 2006 | -35376.33 |
| 14 | 2005 | -22739.84 |
| 15 | 2004 | -16779.67 |
| 16 | 2003 | -13048.41 |
| 17 | 2002 | -10896.08 |
| 18 | 2001 | -10209.61 |
| 19 | 2000 | -9745.96 |
| 20 | 1999 | -6274.78 |
| 21 | 1998 | -9635.13 |
| 22 | 1997 | -3808.79 |
| 23 | 1996 | -8744.94 |
| 24 | 1995 | -12955.77 |
| 25 | 1994 | -17093.95 |
| 26 | 1993 | -19917.21 |
| 27 | 1992 | -22468.56 |
| 28 | 1991 | -21862.34 |
| 29 | 1990 | -22879.69 |
| 30 | 1989 | -13546.01 |
| 31 | 1988 | -14465.61 |
| 32 | 1987 | -18099.96 |
| 33 | 1986 | -12730.89 |
| 34 | 1985 | -11221.24 |
