| 年份 | 单位:% |
| 含“(E)”其对应值为系统预测,仅供参考。 | |
| 2025(E) | 购买后可见 » |
| 2024(E) | 购买后可见 » |
| 2023(E) | 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 | 购买后可见 » |
| 2012 | 41.42 |
| 2011 | 39.07 |
| 2010 | 40.61 |
| 2009 | 41.67 |
| 2008 | 41.62 |
| 2007 | 42.97 |
| 2006 | 43.13 |
| 2005 | 42.53 |
| 2004 | 43.24 |
| 2003 | 43.77 |
| 2002 | 47.16 |
| 2001 | 45.14 |
| 2000 | 44.42 |
| 1999 | 43.82 |
| 1998 | 43.43 |
| 1997 | 44.01 |
| 1996 | 45.00 |
| 1995 | 47.33 |
| 1994 | 48.42 |
| 1993 | 51.48 |
| 1992 | 55.71 |
| 1991 | 59.21 |
| 1990 | 57.89 |
| 1989 | 58.45 |
| 1988 | 61.92 |
| 1987 | 60.98 |
| 1986 | 60.08 |
| 1985 | 57.90 |
| 1984 | 56.16 |
| 1983 | 55.20 |
| 1982 | 55.75 |
| 1981 | 57.99 |
| 1980 | 52.31 |
| 1979 | 51.39 |
| 1978 | 50.96 |
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