| 年份 | 单位:百分点 |
| 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 | 4.40 |
| 2012 | 4.80 |
| 2011 | 5.60 |
| 2010 | 4.50 |
| 2009 | 4.00 |
| 2008 | 3.90 |
| 2007 | 4.40 |
| 2006 | 5.00 |
| 2005 | 4.90 |
| 2004 | 4.60 |
| 2003 | 4.00 |
| 2002 | 4.90 |
| 2001 | 3.80 |
| 2000 | 5.50 |
| 1999 | 5.70 |
| 1998 | 6.40 |
| 1997 | 7.70 |
| 1996 | 8.40 |
| 1995 | 7.70 |
| 1994 | 8.30 |
| 1993 | 11.50 |
| 1992 | 9.20 |
| 1991 | 4.50 |
| 1990 | 2.00 |
| 1989 | 2.60 |
| 1988 | 8.10 |
| 1987 | 7.00 |
| 1986 | 3.60 |
| 1985 | 7.90 |
| 1984 | 9.20 |
| 1983 | 2.20 |
| 1982 | 1.50 |
| 1981 | -1.70 |
| 1980 | 1.20 |
| 1979 | 3.90 |
| 1978 | 8.80 |
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