| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 24410.39 |
| 8 | 2017 | 23385.07 |
| 9 | 2016 | 20105.76 |
| 10 | 2015 | 19899.15 |
| 11 | 2014 | 19487.42 |
| 12 | 2013 | 19928.99 |
| 13 | 2012 | 19430.42 |
| 14 | 2011 | 19104.99 |
| 15 | 2010 | 17847.61 |
| 16 | 2009 | 16182.08 |
| 17 | 2008 | 17276.76 |
| 18 | 2007 | 16455.11 |
| 19 | 2006 | 14843.58 |
| 20 | 2005 | 13464.81 |
| 21 | 2004 | 12117.68 |
| 22 | 2003 | 10933.39 |
| 23 | 2002 | 9953.46 |
| 24 | 2001 | 11117.75 |
| 25 | 2000 | 11499.98 |
| 26 | 1999 | 11463.85 |
| 27 | 1998 | 11835.68 |
| 28 | 1997 | 11403.48 |
| 29 | 1996 | 10495.84 |
| 30 | 1995 | 9890.92 |
| 31 | 1994 | 10103.03 |
| 32 | 1993 | 9472.45 |
| 33 | 1992 | 8667.85 |
| 34 | 1991 | 7960.98 |
| 35 | 1990 | 7158.31 |
