| 序号 | 时间 (年) |
数据 (美元) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 49982.60 |
| 8 | 2017 | 48317.39 |
| 9 | 2016 | 46470.65 |
| 10 | 2015 | 44669.45 |
| 11 | 2014 | 45758.10 |
| 12 | 2013 | 44301.06 |
| 13 | 2012 | 42291.97 |
| 14 | 2011 | 41666.84 |
| 15 | 2010 | 40098.25 |
| 16 | 2009 | 38864.06 |
| 17 | 2008 | 40376.09 |
| 18 | 2007 | 39575.48 |
| 19 | 2006 | 38119.39 |
| 20 | 2005 | 36328.38 |
| 21 | 2004 | 33927.67 |
| 22 | 2003 | 32351.55 |
| 23 | 2002 | 30963.92 |
| 24 | 2001 | 30230.85 |
| 25 | 2000 | 29362.08 |
| 26 | 1999 | 27841.35 |
| 27 | 1998 | 26319.67 |
| 28 | 1997 | 25258.86 |
| 29 | 1996 | 24050.18 |
| 30 | 1995 | 23485.64 |
| 31 | 1994 | 22632.83 |
| 32 | 1993 | 21440.05 |
| 33 | 1992 | 20626.20 |
| 34 | 1991 | 20224.69 |
| 35 | 1990 | 20229.76 |
