| 年份 | 单位:% |
| 含“(E)”其对应值为系统预测,仅供参考。 | |
| 2030(E) | 购买后可见 » |
| 2029(E) | 购买后可见 » |
| 2028(E) | 购买后可见 » |
| 2027 | 购买后可见 » |
| 2026 | 购买后可见 » |
| 2025 | 购买后可见 » |
| 2024 | 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 | 80.34 |
| 2016 | 81.88 |
| 2015 | 80.91 |
| 2014 | 81.10 |
| 2013 | 80.37 |
| 2012 | 80.47 |
| 2011 | 76.32 |
| 2010 | 69.82 |
| 2009 | 62.71 |
| 2008 | 51.63 |
| 2007 | 45.37 |
| 2006 | 45.20 |
| 2005 | 43.43 |
| 2004 | 43.02 |
| 2003 | 41.47 |
| 2002 | 38.13 |
| 2001 | 35.52 |
| 2000 | 36.25 |
| 1999 | 40.92 |
| 1998 | 45.56 |
| 1997 | 49.31 |
| 1996 | 52.33 |
| 1995 | 54.23 |
| 1994 | 54.74 |
| 1993 | 55.33 |
| 1992 | 52.71 |
| 1991 | 49.25 |
| 1990 | 45.80 |
| 1989 | 44.50 |
| 1988 | 44.34 |
| 1987 | 42.91 |
| 1986 | 40.74 |
| 1985 | 37.24 |
| 1984 | 34.18 |
| 1983 | 32.92 |
| 1982 | 29.47 |
| 1981 | 25.37 |
| 1980 | 30.33 |
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