| 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 | 1.25 |
| 2012 | 1.25 |
| 2011 | 1.26 |
| 2010 | 1.36 |
| 2009 | 1.45 |
| 2008 | 1.42 |
| 2007 | 1.51 |
| 2006 | 1.59 |
| 2005 | 1.66 |
| 2004 | 1.69 |
| 2003 | 1.74 |
| 2002 | 1.79 |
| 2001 | 1.79 |
| 2000 | 1.72 |
| 1999 | 1.70 |
| 1998 | 1.67 |
| 1997 | 1.48 |
| 1996 | 1.41 |
| 1995 | 1.42 |
| 1994 | 1.53 |
| 1993 | 1.62 |
| 1992 | 1.63 |
| 1991 | 1.73 |
| 1990 | 1.81 |
| 1989 | 1.95 |
| 1988 | 2.01 |
| 1987 | 2.11 |
| 1986 | 2.18 |
| 1985 | 2.20 |
| 1984 | 2.13 |
| 1983 | 2.11 |
| 1982 | 2.14 |
| 1981 | 2.11 |
| 1980 | 2.14 |
| 1979 | 2.17 |
| 1978 | 2.27 |
| 1977 | 2.44 |
| 1976 | 2.47 |
| 1975 | 2.37 |
| 1974 | 2.44 |
| 1973 | 2.46 |
| 1972 | 2.82 |
| 1971 | 3.05 |
| 1970 | 3.06 |
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