| 序号 | 时间 (年) |
数据 (亿美元) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 3.56 |
| 8 | 2017 | 3.12 |
| 9 | 2016 | 2.94 |
| 10 | 2015 | 2.78 |
| 11 | 2014 | 3.32 |
| 12 | 2013 | 3.39 |
| 13 | 2012 | 3.53 |
| 14 | 2011 | 4.32 |
| 15 | 2010 | 4.53 |
| 16 | 2009 | 5.45 |
| 17 | 2008 | 6.33 |
| 18 | 2007 | 6.12 |
| 19 | 2006 | 5.59 |
| 20 | 2005 | 5.07 |
| 21 | 2004 | 4.58 |
| 22 | 2003 | 3.67 |
| 23 | 2002 | 2.66 |
| 24 | 2001 | 2.31 |
| 25 | 2000 | 2.13 |
