| 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 » |
| 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 | 24.69 |
| 2012 | 23.91 |
| 2011 | 23.31 |
| 2010 | 23.03 |
| 2009 | 22.73 |
| 2008 | 22.53 |
| 2007 | 22.34 |
| 2006 | 21.98 |
| 2005 | 21.67 |
| 2004 | 22.70 |
| 2003 | 22.41 |
| 2002 | 22.22 |
| 2001 | 21.99 |
| 2000 | 21.41 |
| 1999 | 21.00 |
| 1998 | 19.94 |
| 1997 | 18.06 |
| 1996 | 17.84 |
| 1995 | 17.50 |
| 1994 | 17.07 |
| 1993 | 14.92 |
| 1992 | 15.50 |
| 1991 | 15.72 |
| 1990 | 15.99 |
| 1989 | 16.99 |
| 1988 | 16.25 |
| 1987 | 18.85 |
| 1986 | 11.89 |
| 1985 | 13.18 |
| 1984 | 11.40 |
| 1983 | 8.92 |
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