| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 62167.64 |
| 8 | 2016 | 60800.30 |
| 9 | 2015 | 59884.04 |
| 10 | 2014 | 59490.24 |
| 11 | 2013 | 62816.94 |
| 12 | 2012 | 61094.05 |
| 13 | 2011 | 64662.38 |
| 14 | 2010 | 62739.21 |
| 15 | 2009 | 60855.62 |
| 16 | 2008 | 63512.61 |
| 17 | 2007 | 61032.90 |
| 18 | 2006 | 61393.87 |
| 19 | 2005 | 61044.08 |
| 20 | 2004 | 58767.65 |
| 21 | 2003 | 56472.49 |
| 22 | 2002 | 55462.77 |
| 23 | 2001 | 54910.94 |
| 24 | 2000 | 54723.08 |
| 25 | 1999 | 53111.34 |
| 26 | 1998 | 58900.74 |
| 27 | 1997 | 56054.72 |
