| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 14875.51 |
| 8 | 2016 | 15012.51 |
| 9 | 2015 | 14596.05 |
| 10 | 2014 | 14602.99 |
| 11 | 2013 | 14716.12 |
| 12 | 2012 | 15514.27 |
| 13 | 2011 | 15127.88 |
| 14 | 2010 | 14441.53 |
| 15 | 2009 | 14498.04 |
| 16 | 2008 | 15633.19 |
| 17 | 2007 | 15656.87 |
| 18 | 2006 | 15054.47 |
| 19 | 2005 | 14363.77 |
| 20 | 2004 | 14028.53 |
| 21 | 2003 | 13426.88 |
| 22 | 2002 | 12982.66 |
| 23 | 2001 | 12822.79 |
| 24 | 2000 | 12783.36 |
| 25 | 1999 | 12037.16 |
| 26 | 1998 | 12528.53 |
| 27 | 1997 | 12420.86 |
| 28 | 1996 | 12438.31 |
| 29 | 1995 | 12482.05 |
| 30 | 1994 | 12178.15 |
| 31 | 1993 | 12546.61 |
| 32 | 1992 | 12208.97 |
| 33 | 1991 | 12115.53 |
