| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 20921.48 |
| 8 | 2017 | 20488.72 |
| 9 | 2016 | 20104.58 |
| 10 | 2015 | 19075.34 |
| 11 | 2014 | 18820.80 |
| 12 | 2013 | 18170.26 |
| 13 | 2012 | 18004.79 |
| 14 | 2011 | 17266.81 |
| 15 | 2010 | 15908.86 |
| 16 | 2009 | 15192.62 |
| 17 | 2008 | 15680.58 |
| 18 | 2007 | 15031.86 |
| 19 | 2006 | 14541.67 |
| 20 | 2005 | 13260.24 |
| 21 | 2004 | 12657.82 |
| 22 | 2003 | 12066.16 |
| 23 | 2002 | 11761.89 |
| 24 | 2001 | 11738.73 |
| 25 | 2000 | 11704.38 |
| 26 | 1999 | 11030.52 |
| 27 | 1998 | 10756.22 |
| 28 | 1997 | 10182.51 |
| 29 | 1996 | 9496.11 |
| 30 | 1995 | 8933.09 |
| 31 | 1994 | 9466.26 |
| 32 | 1993 | 9040.83 |
| 33 | 1992 | 9470.00 |
| 34 | 1991 | 9078.92 |
| 35 | 1990 | 8578.16 |
