| 年份 | 单位:% |
| 含“(E)”其对应值为系统预测,仅供参考。 | |
| 2030(E) | 购买后可见 » |
| 2029(E) | 购买后可见 » |
| 2028(E) | 购买后可见 » |
| 2027 | 购买后可见 » |
| 2026 | 购买后可见 » |
| 2025 | 购买后可见 » |
| 2024 | 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 | 14.56 |
| 2016 | 12.41 |
| 2015 | 12.48 |
| 2014 | 12.13 |
| 2013 | 11.28 |
| 2012 | 12.42 |
| 2011 | 13.89 |
| 2010 | 12.97 |
| 2009 | 11.55 |
| 2008 | 13.58 |
| 2007 | 14.94 |
| 2006 | 15.06 |
| 2005 | 15.30 |
| 2004 | 15.30 |
| 2003 | 15.38 |
| 2002 | 15.34 |
| 2001 | 15.40 |
| 2000 | 15.04 |
| 1999 | 15.66 |
| 1998 | 18.09 |
| 1997 | 17.28 |
| 1996 | 16.44 |
| 1995 | 16.49 |
| 1994 | 16.17 |
| 1993 | 14.52 |
| 1992 | 14.69 |
| 1991 | 15.71 |
| 1990 | 16.62 |
| 1989 | 17.41 |
| 1988 | 17.37 |
| 1987 | 17.36 |
| 1986 | 17.13 |
| 1985 | 18.09 |
| 1984 | 17.96 |
| 1983 | 17.83 |
| 1982 | 17.42 |
| 1981 | 17.87 |
| 1980 | 18.35 |
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