| 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 » |
| 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 | 18.50 |
| 2012 | 19.20 |
| 2011 | 20.49 |
| 2010 | 19.60 |
| 2009 | 19.98 |
| 2008 | 21.20 |
| 2007 | 24.20 |
| 2006 | 24.50 |
| 2005 | 26.30 |
| 2004 | 27.30 |
| 2003 | 32.10 |
| 2002 | 34.60 |
| 2001 | 34.30 |
| 2000 | 33.60 |
| 1999 | 34.90 |
| 1998 | 36.30 |
| 1997 | 39.20 |
| 1996 | 39.40 |
| 1995 | 40.70 |
| 1994 | 41.00 |
| 1993 | 44.50 |
| 1992 | 43.40 |
| 1991 | 44.10 |
| 1990 | 44.90 |
| 1989 | 44.90 |
| 1988 | 45.80 |
| 1987 | 45.50 |
| 1986 | 45.90 |
| 1985 | 46.00 |
| 1984 | 44.60 |
| 1983 | 43.50 |
| 1982 | 42.70 |
| 1981 | 43.10 |
| 1980 | 42.80 |
| 1979 | 41.50 |
| 1978 | 40.10 |
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