| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 17550.00 |
| 8 | 2017 | 15260.00 |
| 9 | 2016 | 14890.00 |
| 10 | 2015 | 15220.00 |
| 11 | 2014 | 16020.00 |
| 12 | 2013 | 15310.00 |
| 13 | 2012 | 14040.00 |
| 14 | 2011 | 13200.00 |
| 15 | 2010 | 12430.00 |
| 16 | 2009 | 12480.00 |
| 17 | 2008 | 12670.00 |
| 18 | 2007 | 10590.00 |
| 19 | 2006 | 8810.00 |
| 20 | 2005 | 7580.00 |
| 21 | 2004 | 6020.00 |
| 22 | 2003 | 4700.00 |
| 23 | 2002 | 3830.00 |
| 24 | 2001 | 3460.00 |
| 25 | 2000 | 3220.00 |
| 26 | 1999 | 2990.00 |
| 27 | 1998 | 2870.00 |
| 28 | 1997 | 2610.00 |
