| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | |
| 8 | 2016 | |
| 9 | 2015 | |
| 10 | 2014 | |
| 11 | 2013 | 22988.24 |
| 12 | 2012 | 23377.92 |
| 13 | 2011 | 23683.06 |
| 14 | 2010 | 23675.55 |
| 15 | 2009 | 23653.44 |
| 16 | 2008 | 24068.35 |
| 17 | 2007 | 24501.67 |
| 18 | 2006 | 24405.44 |
| 19 | 2005 | 23951.76 |
| 20 | 2004 | 23984.49 |
| 21 | 2003 | 23983.78 |
| 22 | 2002 | 23353.01 |
| 23 | 2001 | 23097.81 |
| 24 | 2000 | 22947.83 |
| 25 | 1999 | 22899.38 |
| 26 | 1998 | 22750.01 |
| 27 | 1997 | 23419.89 |
| 28 | 1996 | 23843.33 |
| 29 | 1995 | 23969.42 |
| 30 | 1994 | 23587.24 |
| 31 | 1993 | 23400.01 |
| 32 | 1992 | 21566.13 |
| 33 | 1991 | 21280.45 |
