| 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 | 41.50 |
| 2012 | 38.60 |
| 2011 | 39.80 |
| 2010 | 46.30 |
| 2009 | 45.10 |
| 2008 | 42.60 |
| 2007 | 48.50 |
| 2006 | 44.30 |
| 2005 | 43.00 |
| 2004 | 38.00 |
| 2003 | 40.30 |
| 2002 | 39.10 |
| 2001 | 45.20 |
| 2000 | 34.30 |
| 1999 | 30.70 |
| 1998 | 30.90 |
| 1997 | 31.30 |
| 1996 | 30.50 |
| 1995 | 33.00 |
| 1994 | 29.10 |
| 1993 | 30.10 |
| 1992 | 41.90 |
| 1991 | 53.00 |
| 1990 | 43.00 |
| 1989 | 42.40 |
| 1988 | 37.70 |
| 1987 | 35.80 |
| 1986 | 44.40 |
| 1985 | 30.90 |
| 1984 | 15.90 |
| 1983 | 24.10 |
| 1982 | 34.00 |
| 1981 | 103.40 |
| 1980 | 84.90 |
| 1979 | 17.60 |
| 1978 | 18.70 |
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