| 年份 | 单位:% |
| 含“(E)”其对应值为系统预测,仅供参考。 | |
| 2019(E) | 购买后可见 » |
| 2018(E) | 购买后可见 » |
| 2017(E) | 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 | 购买后可见 » |
| 2007 | 购买后可见 » |
| 2006 | 98.70 |
| 2005 | 98.70 |
| 2004 | 98.90 |
| 2003 | 98.50 |
| 2002 | 98.60 |
| 2001 | 99.00 |
| 2000 | 98.80 |
| 1999 | 98.90 |
| 1993 | 81.10 |
| 1992 | 91.20 |
| 1991 | 98.10 |
| 1990 | 98.60 |
| 1985 | 98.70 |
| 1980 | 98.70 |
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