| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 63237.91 |
| 8 | 2016 | 61074.49 |
| 9 | 2015 | 59361.10 |
| 10 | 2014 | 57740.22 |
| 11 | 2013 | 56098.28 |
| 12 | 2012 | 56114.31 |
| 13 | 2011 | 55398.84 |
| 14 | 2010 | 55227.89 |
| 15 | 2009 | 52995.50 |
| 16 | 2008 | 55545.02 |
| 17 | 2007 | 54152.17 |
| 18 | 2006 | 52567.65 |
| 19 | 2005 | 51417.71 |
| 20 | 2004 | 50294.48 |
| 21 | 2003 | 48537.92 |
| 22 | 2002 | 47170.84 |
| 23 | 2001 | 46090.31 |
| 24 | 2000 | 46944.74 |
| 25 | 1999 | 44619.52 |
| 26 | 1998 | 43283.33 |
| 27 | 1997 | 47931.45 |
| 28 | 1996 | 46125.85 |
| 29 | 1995 | 43525.59 |
| 30 | 1994 | 41076.71 |
| 31 | 1993 | 38973.14 |
| 32 | 1992 | 36397.58 |
| 33 | 1991 | 34465.40 |
