| 年份 | 单位:% |
| 含“(E)”其对应值为系统预测,仅供参考。 | |
| 2026(E) | 购买后可见 » |
| 2025(E) | 购买后可见 » |
| 2024(E) | 购买后可见 » |
| 2023 | 购买后可见 » |
| 2022 | 购买后可见 » |
| 2021 | 购买后可见 » |
| 2020 | 购买后可见 » |
| 2019 | 购买后可见 » |
| 2018 | 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 | 22.59 |
| 2011 | 23.06 |
| 2010 | 21.23 |
| 2009 | 24.26 |
| 2008 | 25.73 |
| 2007 | 27.26 |
| 2006 | 34.53 |
| 2005 | 34.73 |
| 2004 | 34.04 |
| 2003 | 34.67 |
| 2002 | 40.80 |
| 2001 | 47.63 |
| 2000 | 47.84 |
| 1999 | 47.07 |
| 1998 | 44.43 |
| 1997 | 46.46 |
| 1996 | 46.77 |
| 1995 | 45.96 |
| 1994 | 40.86 |
| 1993 | 40.15 |
| 1992 | 36.59 |
| 1991 | 38.38 |
| 1990 | 41.14 |
| 1989 | 43.58 |
| 1988 | 42.34 |
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