| 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 » |
| 2010 | 41.30 |
| 2009 | 43.20 |
| 2008 | 43.40 |
| 2007 | 43.70 |
| 2006 | 45.20 |
| 2005 | 46.00 |
| 2004 | 48.30 |
| 2003 | 51.30 |
| 2002 | 50.40 |
| 2001 | 50.50 |
| 2000 | 50.20 |
| 1999 | 48.80 |
| 1998 | 48.60 |
| 1997 | 35.30 |
| 1996 | 35.90 |
| 1995 | 36.80 |
| 1994 | 36.80 |
| 1993 | 38.20 |
| 1992 | 36.80 |
| 1991 | 38.20 |
| 1990 | 39.60 |
| 1985 | 41.20 |
| 1980 | 46.80 |
| 1978 | 52.60 |
| 1975 | 55.70 |
| 1970 | 57.40 |
| 1965 | 58.20 |
| 1962 | 60.00 |
| 1957 | 67.20 |
| 1952 | 74.00 |
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