| 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 | 33546.98 |
| 12 | 2007 | 25412.07 |
| 13 | 2006 | 24470.50 |
| 14 | 2005 | 18891.20 |
| 15 | 2004 | 14542.91 |
| 16 | 2003 | 13004.73 |
| 17 | 2002 | 10479.87 |
| 18 | 2001 | 10825.97 |
| 19 | 2000 | 10785.87 |
| 20 | 1999 | 9729.66 |
| 21 | 1998 | 12348.42 |
| 22 | 1997 | 9606.90 |
| 23 | 1996 | 10001.43 |
| 24 | 1995 | 17555.83 |
| 25 | 1994 | 17259.39 |
| 26 | 1993 | 17284.37 |
| 27 | 1992 | 18177.40 |
| 28 | 1991 | 19592.58 |
| 29 | 1990 | 18902.18 |
| 30 | 1989 | 15140.55 |
| 31 | 1988 | 16606.00 |
| 32 | 1987 | 15917.28 |
| 33 | 1986 | 16530.46 |
| 34 | 1985 | 14969.66 |
