| 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 | 58.39 |
| 2012 | 58.41 |
| 2011 | 59.11 |
| 2010 | 57.78 |
| 2009 | 59.18 |
| 2008 | 58.37 |
| 2007 | 58.69 |
| 2006 | 59.10 |
| 2005 | 58.38 |
| 2004 | 58.04 |
| 2003 | 57.43 |
| 2002 | 58.16 |
| 2001 | 55.63 |
| 2000 | 55.58 |
| 1999 | 54.33 |
| 1998 | 54.52 |
| 1997 | 53.79 |
| 1996 | 51.16 |
| 1995 | 47.95 |
| 1994 | 45.54 |
| 1993 | 41.05 |
| 1992 | 38.94 |
| 1991 | 33.67 |
| 1990 | 29.07 |
| 1989 | 24.90 |
| 1988 | 19.21 |
| 1987 | 15.54 |
| 1986 | 13.63 |
| 1985 | 11.91 |
| 1984 | 10.38 |
| 1983 | 9.30 |
| 1982 | 7.23 |
| 1981 | 6.40 |
| 1980 | 5.11 |
| 1979 | 4.07 |
| 1978 | 2.78 |
| 1977 | 2.10 |
| 1976 | 1.54 |
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