| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 51201.10 |
| 8 | 2016 | 49270.50 |
| 9 | 2015 | 47198.76 |
| 10 | 2014 | 47970.58 |
| 11 | 2013 | 52151.98 |
| 12 | 2012 | 55531.31 |
| 13 | 2011 | 56049.23 |
| 14 | 2010 | 56652.16 |
| 15 | 2009 | 53563.99 |
| 16 | 2008 | 50801.73 |
| 17 | 2007 | 48910.27 |
| 18 | 2006 | 45610.50 |
| 19 | 2005 | 45665.73 |
| 20 | 2004 | 45178.50 |
| 21 | 2003 | 43436.49 |
| 22 | 2002 | 43185.07 |
| 23 | 2001 | 42825.37 |
| 24 | 2000 | 42308.86 |
| 25 | 1999 | 43003.30 |
| 26 | 1998 | 44502.02 |
| 27 | 1997 | 44032.36 |
| 28 | 1996 | 44745.46 |
| 29 | 1995 | 40945.59 |
| 30 | 1994 | 39438.62 |
| 31 | 1993 | 37353.42 |
| 32 | 1992 | 34517.33 |
| 33 | 1991 | 30307.05 |
