| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 24386.49 |
| 8 | 2017 | 23606.63 |
| 9 | 2016 | 22840.55 |
| 10 | 2015 | 22168.61 |
| 11 | 2014 | 21867.81 |
| 12 | 2013 | 20661.38 |
| 13 | 2012 | 19495.42 |
| 14 | 2011 | 19135.36 |
| 15 | 2010 | 17872.54 |
| 16 | 2009 | 16421.77 |
| 17 | 2008 | 15694.24 |
| 18 | 2007 | 14397.22 |
| 19 | 2006 | 13179.39 |
| 20 | 2005 | 12295.70 |
| 21 | 2004 | 11103.11 |
| 22 | 2003 | 10303.23 |
| 23 | 2002 | 10030.13 |
| 24 | 2001 | 10719.39 |
| 25 | 2000 | 10929.30 |
| 26 | 1999 | 10938.36 |
| 27 | 1998 | 11002.13 |
| 28 | 1997 | 10460.92 |
| 29 | 1996 | 9524.09 |
| 30 | 1995 | 8905.62 |
| 31 | 1994 | 8897.18 |
| 32 | 1993 | 8162.36 |
| 33 | 1992 | 7808.12 |
| 34 | 1991 | 7112.44 |
| 35 | 1990 | 6683.06 |
