| 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 | 23.55 |
| 2016 | 22.76 |
| 2015 | 23.82 |
| 2014 | 24.87 |
| 2013 | 24.91 |
| 2012 | 24.87 |
| 2011 | 24.15 |
| 2010 | 23.48 |
| 2009 | 21.96 |
| 2008 | 24.07 |
| 2007 | 23.91 |
| 2006 | 23.60 |
| 2005 | 22.82 |
| 2004 | 21.56 |
| 2003 | 20.64 |
| 2002 | 19.95 |
| 2001 | 19.84 |
| 2000 | 20.76 |
| 1999 | 20.81 |
| 1998 | 21.13 |
| 1997 | 21.35 |
| 1996 | 19.04 |
| 1995 | 19.51 |
| 1994 | 19.65 |
| 1993 | 18.54 |
| 1992 | 18.54 |
| 1991 | 19.55 |
| 1990 | 21.74 |
| 1989 | 24.14 |
| 1988 | 23.70 |
| 1987 | 22.92 |
| 1986 | 21.89 |
| 1985 | 21.69 |
| 1984 | 21.24 |
| 1983 | 20.58 |
| 1982 | 20.17 |
| 1981 | 25.81 |
| 1980 | 23.86 |
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