| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 30896.76 |
| 8 | 2016 | 28848.59 |
| 9 | 2015 | 27018.32 |
| 10 | 2014 | 25256.91 |
| 11 | 2013 | 23534.47 |
| 12 | 2012 | 21836.76 |
| 13 | 2011 | 20254.28 |
| 14 | 2010 | 18586.36 |
| 15 | 2009 | 16799.82 |
| 16 | 2008 | 15320.14 |
| 17 | 2007 | 13942.67 |
| 18 | 2006 | 12243.68 |
| 19 | 2005 | 10941.67 |
| 20 | 2004 | 9911.10 |
| 21 | 2003 | 9092.47 |
| 22 | 2002 | 8318.50 |
| 23 | 2001 | 7671.69 |
| 24 | 2000 | 7112.73 |
| 25 | 1999 | 6642.78 |
| 26 | 1998 | 6251.97 |
| 27 | 1997 | 5884.23 |
| 28 | 1996 | 5467.14 |
| 29 | 1995 | 5040.10 |
| 30 | 1994 | 4600.58 |
| 31 | 1993 | 4113.67 |
| 32 | 1992 | 3643.39 |
| 33 | 1991 | 3230.05 |
