| 序号 | 时间 (年) |
数据 (亿美元) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2019 | |
| 4 | 2018 | |
| 5 | 2017 | |
| 6 | 2016 | |
| 7 | 2015 | 28.92 |
| 8 | 2014 | 26.21 |
| 9 | 2013 | 21.53 |
| 10 | 2012 | 25.19 |
| 11 | 2011 | 24.18 |
| 12 | 2010 | 21.56 |
| 13 | 2009 | 18.04 |
| 14 | 2008 | 188.36 |
| 15 | 2007 | 189.73 |
| 16 | 2006 | 133.64 |
| 17 | 2005 | 154.80 |
| 18 | 2004 | 149.12 |
| 19 | 2003 | 121.49 |
| 20 | 2002 | 91.96 |
| 21 | 2001 | 44.53 |
| 22 | 2000 | 43.76 |
| 23 | 1999 | 37.45 |
| 24 | 1998 | 32.40 |
| 25 | 1997 | 36.05 |
| 26 | 1996 | 38.95 |
| 27 | 1995 | 38.63 |
| 28 | 1994 | 21.86 |
| 29 | 1993 | 9.20 |
