| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 247.13 |
| 8 | 2017 | 262.37 |
| 9 | 2016 | 264.37 |
| 10 | 2015 | 280.12 |
| 11 | 2014 | 293.56 |
| 12 | 2013 | 297.19 |
| 13 | 2012 | 317.87 |
| 14 | 2011 | 336.07 |
| 15 | 2010 | 352.02 |
| 16 | 2009 | 357.96 |
| 17 | 2008 | 370.47 |
| 18 | 2007 | 374.54 |
| 19 | 2006 | 383.97 |
| 20 | 2005 | 414.15 |
| 21 | 2004 | 438.38 |
| 22 | 2003 | 447.13 |
| 23 | 2002 | 440.99 |
| 24 | 2001 | 440.85 |
| 25 | 2000 | 440.05 |
| 26 | 1999 | 440.22 |
| 27 | 1998 | 445.87 |
| 28 | 1997 | 449.00 |
| 29 | 1996 | 449.67 |
| 30 | 1995 | 453.34 |
| 31 | 1994 | 455.21 |
| 32 | 1993 | 456.78 |
| 33 | 1992 | 438.96 |
| 34 | 1991 | 427.48 |
| 35 | 1990 | 411.44 |
| 36 | 1989 | 395.34 |
| 37 | 1988 | 380.12 |
| 38 | 1987 | 375.09 |
| 39 | 1986 | 368.65 |
| 40 | 1985 | 357.53 |
| 41 | 1984 | 361.82 |
| 42 | 1983 | 354.67 |
| 43 | 1982 | 350.23 |
| 44 | 1981 | 346.14 |
| 45 | 1980 | 342.43 |
| 46 | 1979 | 333.40 |
| 47 | 1978 | 329.85 |
| 48 | 1977 | 351.27 |
| 49 | 1976 | 350.28 |
| 50 | 1975 | 346.98 |
| 51 | 1974 | 321.59 |
| 52 | 1973 | 343.80 |
| 53 | 1972 | 319.19 |
| 54 | 1971 | 320.10 |
| 55 | 1970 | 297.57 |
| 56 | 1969 | 298.58 |
| 57 | 1968 | 303.29 |
| 58 | 1967 | 305.31 |
| 59 | 1966 | 312.34 |
| 60 | 1965 | 312.32 |
| 61 | 1964 | 319.30 |
| 62 | 1963 | 327.26 |
| 63 | 1962 | 332.90 |
| 64 | 1961 | 349.24 |
| 65 | 1960 | 364.38 |
