| 序号 | 时间 (年) |
数据 (亿美元) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | 126.78 |
| 8 | 2014 | 148.49 |
| 9 | 2013 | 150.99 |
| 10 | 2012 | 143.01 |
| 11 | 2011 | 113.85 |
| 12 | 2010 | 94.12 |
| 13 | 2009 | 113.00 |
| 14 | 2008 | 122.67 |
| 15 | 2007 | 95.30 |
| 16 | 2006 | 63.59 |
| 17 | 2005 | 29.16 |
| 18 | 2004 | 12.35 |
| 19 | 2003 | 8.18 |
| 20 | 2002 | 8.34 |
| 21 | 2001 | 5.71 |
| 22 | 2000 | 4.67 |
| 23 | 1999 | 4.75 |
| 24 | 1998 | 3.91 |
| 25 | 1997 | 4.67 |
| 26 | 1996 | 1.84 |
| 27 | 1995 | 1.24 |
| 28 | 1994 | 1.29 |
| 29 | 1993 | 1.70 |
| 30 | 1992 | 1.68 |
| 31 | 1991 | 1.16 |
| 32 | 1990 | 1.10 |
| 33 | 1989 | 0.93 |
| 34 | 1988 | 0.97 |
| 35 | 1987 | 0.80 |
| 36 | 1986 | 0.61 |
| 37 | 1985 | 0.52 |
| 38 | 1984 | 0.44 |
| 39 | 1983 | 0.39 |
| 40 | 1982 | 0.36 |
