| 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 | 63631.92 |
| 12 | 2012 | 61489.55 |
| 13 | 2011 | 58923.83 |
| 14 | 2010 | 53733.92 |
| 15 | 2009 | 50988.71 |
| 16 | 2008 | 51773.11 |
| 17 | 2007 | 49378.33 |
| 18 | 2006 | 45052.47 |
| 19 | 2005 | 41882.39 |
| 20 | 2004 | 40167.72 |
| 21 | 2003 | 38578.85 |
| 22 | 2002 | 38010.87 |
| 23 | 2001 | 38411.23 |
| 24 | 2000 | 39420.31 |
| 25 | 1999 | 39659.04 |
| 26 | 1998 | 39501.34 |
| 27 | 1997 | 37350.62 |
| 28 | 1996 | 35968.92 |
| 29 | 1995 | 35386.21 |
| 30 | 1994 | 36298.51 |
| 31 | 1993 | 36368.33 |
| 32 | 1992 | 36286.55 |
| 33 | 1991 | 35408.68 |
