| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 198.50 |
| 8 | 2017 | 195.62 |
| 9 | 2016 | 199.01 |
| 10 | 2015 | 199.84 |
| 11 | 2014 | 202.93 |
| 12 | 2013 | 205.19 |
| 13 | 2012 | 214.90 |
| 14 | 2011 | 226.40 |
| 15 | 2010 | 238.53 |
| 16 | 2009 | 230.38 |
| 17 | 2008 | 225.37 |
| 18 | 2007 | 230.31 |
| 19 | 2006 | 233.36 |
| 20 | 2005 | 239.22 |
| 21 | 2004 | 247.39 |
| 22 | 2003 | 243.35 |
| 23 | 2002 | 260.80 |
| 24 | 2001 | 271.01 |
| 25 | 2000 | 280.71 |
| 26 | 1999 | 289.41 |
| 27 | 1998 | 297.11 |
| 28 | 1997 | 292.99 |
| 29 | 1996 | 291.92 |
| 30 | 1995 | 293.54 |
| 31 | 1994 | 297.43 |
| 32 | 1993 | 302.33 |
| 33 | 1992 | 295.77 |
| 34 | 1991 | 320.71 |
| 35 | 1990 | 337.51 |
| 36 | 1989 | 325.14 |
| 37 | 1988 | 329.35 |
| 38 | 1987 | 338.59 |
| 39 | 1986 | 338.59 |
| 40 | 1985 | 331.96 |
| 41 | 1984 | 334.61 |
| 42 | 1983 | 333.54 |
| 43 | 1982 | 332.31 |
| 44 | 1981 | 334.05 |
| 45 | 1980 | 334.94 |
| 46 | 1979 | 340.36 |
| 47 | 1978 | 336.08 |
| 48 | 1977 | 331.44 |
| 49 | 1976 | 316.71 |
| 50 | 1975 | 308.48 |
| 51 | 1974 | 302.53 |
| 52 | 1973 | 294.30 |
| 53 | 1972 | 291.43 |
| 54 | 1971 | 297.17 |
| 55 | 1970 | 289.22 |
| 56 | 1969 | 276.74 |
| 57 | 1968 | 279.60 |
| 58 | 1967 | 296.93 |
| 59 | 1966 | 298.64 |
| 60 | 1965 | 320.36 |
| 61 | 1964 | 342.61 |
| 62 | 1963 | 355.38 |
| 63 | 1962 | 341.80 |
| 64 | 1961 | 319.17 |
| 65 | 1960 | 305.35 |
