| 年份 | 单位:% |
| 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 | 18.74 |
| 2007 | 55.40 |
| 2006 | 73.03 |
| 2005 | 56.15 |
| 2004 | 61.03 |
| 2003 | 53.46 |
| 2002 | 48.86 |
| 2001 | 71.24 |
| 2000 | 83.96 |
| 1999 | 71.33 |
| 1998 | 75.58 |
| 1997 | 60.84 |
| 1996 | 46.95 |
| 1995 | 38.54 |
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