| 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 | 82.79 |
| 2012 | 83.12 |
| 2011 | 82.97 |
| 2010 | 82.25 |
| 2009 | 82.87 |
| 2008 | 82.22 |
| 2007 | 82.98 |
| 2006 | 81.70 |
| 2005 | 80.85 |
| 2004 | 80.78 |
| 2003 | 81.02 |
| 2002 | 80.99 |
| 2001 | 79.65 |
| 2000 | 79.37 |
| 1999 | 79.18 |
| 1998 | 80.00 |
| 1997 | 80.19 |
| 1996 | 80.82 |
| 1995 | 79.88 |
| 1994 | 80.78 |
| 1993 | 79.49 |
| 1992 | 78.49 |
| 1991 | 79.20 |
| 1990 | 77.51 |
| 1989 | 76.83 |
| 1988 | 75.25 |
| 1987 | 73.80 |
| 1986 | 72.83 |
| 1985 | 71.87 |
| 1984 | 70.55 |
| 1983 | 70.26 |
| 1982 | 68.53 |
| 1981 | 67.15 |
| 1980 | 63.51 |
| 1979 | 58.76 |
| 1978 | 54.72 |
| 1977 | 50.27 |
| 1976 | 44.57 |
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