| 年份 | 单位:% |
| 含“(E)”其对应值为系统预测,仅供参考。 | |
| 2027(E) | 购买后可见 » |
| 2026(E) | 购买后可见 » |
| 2025(E) | 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 | 购买后可见 » |
| 2016 | 购买后可见 » |
| 2015 | 购买后可见 » |
| 2014 | 2.49 |
| 2013 | 2.50 |
| 2012 | 2.53 |
| 2011 | 2.52 |
| 2010 | 2.32 |
| 2009 | 2.38 |
| 2008 | 3.58 |
| 2007 | 3.39 |
| 2006 | 3.35 |
| 2005 | 3.35 |
| 2004 | 3.59 |
| 2003 | 4.64 |
| 2002 | 6.39 |
| 2001 | 7.70 |
| 2000 | 8.24 |
| 1999 | 8.64 |
| 1998 | 9.03 |
| 1997 | 9.16 |
| 1996 | 9.62 |
| 1995 | 9.87 |
| 1994 | 10.07 |
| 1993 | 10.29 |
| 1992 | 10.32 |
| 1991 | 11.78 |
| 1990 | 12.09 |
| 1989 | 9.94 |
| 1988 | 6.88 |
| 1987 | 7.76 |
| 1986 | 9.35 |
| 1985 | 10.36 |
| 1984 | 10.61 |
| 1983 | 11.23 |
| 1982 | 14.03 |
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