| 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 | 32.06 |
| 2012 | 30.81 |
| 2011 | 30.36 |
| 2010 | 29.76 |
| 2009 | 29.27 |
| 2008 | 28.83 |
| 2007 | 28.62 |
| 2006 | 27.77 |
| 2005 | 26.92 |
| 2004 | 25.91 |
| 2003 | 24.64 |
| 2002 | 24.55 |
| 2001 | 24.44 |
| 2000 | 24.24 |
| 1999 | 23.76 |
| 1998 | 23.29 |
| 1997 | 22.56 |
| 1996 | 21.90 |
| 1995 | 19.79 |
| 1994 | 18.61 |
| 1993 | 16.89 |
| 1992 | 16.39 |
| 1991 | 14.63 |
| 1990 | 15.39 |
| 1989 | 15.55 |
| 1988 | 16.32 |
| 1987 | 16.76 |
| 1986 | 15.87 |
| 1985 | 15.44 |
| 1980 | 10.28 |
| 1978 | 9.24 |
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