| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | |
| 8 | 2017 | |
| 9 | 2016 | |
| 10 | 2015 | |
| 11 | 2014 | 250.70 |
| 12 | 2013 | 254.59 |
| 13 | 2012 | 257.05 |
| 14 | 2011 | 263.94 |
| 15 | 2010 | 266.33 |
| 16 | 2009 | 273.62 |
| 17 | 2008 | 279.83 |
| 18 | 2007 | 285.94 |
| 19 | 2006 | 290.55 |
| 20 | 2005 | 295.81 |
| 21 | 2004 | 301.38 |
| 22 | 2003 | 305.82 |
| 23 | 2002 | 312.84 |
| 24 | 2001 | 314.26 |
| 25 | 2000 | 312.37 |
| 26 | 1999 | 313.29 |
| 27 | 1998 | 313.52 |
| 28 | 1997 | 312.95 |
| 29 | 1996 | 315.05 |
| 30 | 1995 | 317.09 |
| 31 | 1994 | 326.92 |
| 32 | 1993 | 328.31 |
| 33 | 1992 | 333.79 |
| 34 | 1991 | 337.34 |
| 35 | 1990 | 336.77 |
| 36 | 1989 | 342.44 |
| 37 | 1988 | 346.04 |
| 38 | 1987 | 353.54 |
| 39 | 1986 | 360.62 |
| 40 | 1985 | 368.41 |
| 41 | 1984 | 374.76 |
| 42 | 1983 | 376.78 |
| 43 | 1982 | 386.50 |
| 44 | 1981 | 395.36 |
| 45 | 1980 | 411.65 |
| 46 | 1979 | 426.93 |
| 47 | 1978 | 442.39 |
| 48 | 1977 | 460.15 |
| 49 | 1976 | 473.09 |
| 50 | 1975 | 483.99 |
| 51 | 1974 | 491.71 |
| 52 | 1973 | 498.19 |
| 53 | 1972 | 499.33 |
| 54 | 1971 | 511.80 |
| 55 | 1970 | 499.97 |
| 56 | 1969 | 499.35 |
| 57 | 1968 | 497.84 |
| 58 | 1967 | 496.80 |
| 59 | 1966 | 498.14 |
| 60 | 1965 | 498.79 |
| 61 | 1964 | 499.30 |
| 62 | 1963 | 500.44 |
| 63 | 1962 | 501.08 |
| 64 | 1961 | 503.06 |
| 65 | 1960 | 504.47 |
