| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 34896.80 |
| 8 | 2017 | 32970.84 |
| 9 | 2016 | 31589.27 |
| 10 | 2015 | 29615.96 |
| 11 | 2014 | 28764.53 |
| 12 | 2013 | 27966.09 |
| 13 | 2012 | 26476.22 |
| 14 | 2011 | 26803.23 |
| 15 | 2010 | 27295.10 |
| 16 | 2009 | 26458.11 |
| 17 | 2008 | 26665.84 |
| 18 | 2007 | 25738.94 |
| 19 | 2006 | 24682.56 |
| 20 | 2005 | 22725.28 |
| 21 | 2004 | 21478.43 |
| 22 | 2003 | 20852.24 |
| 23 | 2002 | 20356.65 |
| 24 | 2001 | 19530.68 |
| 25 | 2000 | 18879.06 |
| 26 | 1999 | 17718.15 |
| 27 | 1998 | 16686.94 |
| 28 | 1997 | 15785.79 |
| 29 | 1996 | 14916.44 |
| 30 | 1995 | 14396.84 |
| 31 | 1994 | 13568.92 |
| 32 | 1993 | 13193.73 |
| 33 | 1992 | 13173.17 |
| 34 | 1991 | 12730.95 |
| 35 | 1990 | 11771.92 |
