| 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 | 19.49 |
| 2016 | 18.91 |
| 2015 | 20.16 |
| 2014 | 20.10 |
| 2013 | 18.93 |
| 2012 | 18.51 |
| 2011 | 16.16 |
| 2010 | 15.20 |
| 2009 | 13.73 |
| 2008 | 14.94 |
| 2007 | 17.30 |
| 2006 | 19.09 |
| 2005 | 17.85 |
| 2004 | 17.51 |
| 2003 | 17.30 |
| 2002 | 18.11 |
| 2001 | 19.43 |
| 2000 | 20.50 |
| 1999 | 20.62 |
| 1998 | 21.26 |
| 1997 | 20.72 |
| 1996 | 19.52 |
| 1995 | 18.65 |
| 1994 | 17.78 |
| 1993 | 16.98 |
| 1992 | 17.63 |
| 1991 | 18.76 |
| 1990 | 18.69 |
| 1989 | 19.68 |
| 1988 | 20.56 |
| 1987 | 19.55 |
| 1986 | 18.91 |
| 1985 | 20.34 |
| 1984 | 21.89 |
| 1983 | 19.78 |
| 1982 | 21.76 |
| 1981 | 23.21 |
| 1980 | 22.03 |
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