| 年份 | 单位:% |
| 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 » |
| 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 | 购买后可见 » |
| 2012 | 24.00 |
| 2011 | 23.90 |
| 2010 | 22.60 |
| 2009 | 21.90 |
| 2008 | 21.30 |
| 2007 | 20.60 |
| 2006 | 19.20 |
| 2005 | 17.40 |
| 2004 | 16.50 |
| 2003 | 15.80 |
| 2002 | 13.60 |
| 2001 | 13.30 |
| 2000 | 12.60 |
| 1999 | 14.40 |
| 1998 | 14.70 |
| 1997 | 15.00 |
| 1996 | 16.30 |
| 1995 | 16.90 |
| 1994 | 16.80 |
| 1993 | 17.00 |
| 1992 | 18.30 |
| 1991 | 18.60 |
| 1990 | 18.80 |
| 1989 | 18.90 |
| 1988 | 19.50 |
| 1987 | 19.70 |
| 1986 | 20.30 |
| 1985 | 20.10 |
| 1984 | 17.40 |
| 1983 | 17.20 |
| 1982 | 17.30 |
| 1980 | 17.90 |
| 1978 | 18.30 |
| 1975 | 15.60 |
| 1970 | 12.00 |
| 1965 | 7.20 |
| 1957 | 6.00 |
| 1952 | 1.50 |
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