| 年份 | 单位:十亿美元 |
| 含“(E)”其对应值为系统预测,仅供参考。 | |
| 2021(E) | 购买后可见 » |
| 2020(E) | 购买后可见 » |
| 2019(E) | 购买后可见 » |
| 2018 | 购买后可见 » |
| 2017 | 购买后可见 » |
| 2016 | 购买后可见 » |
| 2015 | 购买后可见 » |
| 2014 | 购买后可见 » |
| 2013 | 购买后可见 » |
| 2012 | 购买后可见 » |
| 2011 | 购买后可见 » |
| 2010 | 购买后可见 » |
| 2009 | 购买后可见 » |
| 2008 | 7.16 |
| 2007 | 50.70 |
| 2006 | 46.10 |
| 2005 | 39.60 |
| 2004 | 47.90 |
| 2003 | 15.90 |
| 2002 | 25.80 |
| 2001 | 36.00 |
| 2000 | 75.80 |
| 1999 | 64.30 |
| 1998 | 36.60 |
| 1997 | 43.20 |
| 1996 | 49.90 |
| 1995 | 30.00 |
| 1994 | 28.30 |
| 1993 | 41.30 |
| 1992 | 24.10 |
| 1991 | 16.40 |
| 1990 | 4.50 |
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