| 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 | -26582.17 |
| 12 | 2007 | -19528.44 |
| 13 | 2006 | -18602.85 |
| 14 | 2005 | -12811.02 |
| 15 | 2004 | -9694.65 |
| 16 | 2003 | -9251.92 |
| 17 | 2002 | -7378.27 |
| 18 | 2001 | -6910.48 |
| 19 | 2000 | -5880.61 |
| 20 | 1999 | -4231.33 |
| 21 | 1998 | -5945.34 |
| 22 | 1997 | -859.65 |
| 23 | 1996 | -5960.10 |
| 24 | 1995 | -6266.88 |
| 25 | 1994 | -9194.08 |
| 26 | 1993 | -9898.26 |
| 27 | 1992 | -10481.86 |
| 28 | 1991 | -10296.81 |
| 29 | 1990 | -11627.08 |
| 30 | 1989 | -5815.97 |
| 31 | 1988 | -4170.38 |
| 32 | 1987 | -6083.50 |
| 33 | 1986 | -3616.50 |
| 34 | 1985 | -3605.08 |
