| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2024 | |
| 2 | 2023 | |
| 3 | 2022 | |
| 4 | 2021 | |
| 5 | 2020 | |
| 6 | 2019 | |
| 7 | 2018 | 314.24 |
| 8 | 2017 | 311.28 |
| 9 | 2016 | 319.04 |
| 10 | 2015 | 329.93 |
| 11 | 2014 | 338.37 |
| 12 | 2013 | 339.18 |
| 13 | 2012 | 347.23 |
| 14 | 2011 | 354.08 |
| 15 | 2010 | 360.66 |
| 16 | 2009 | 363.51 |
| 17 | 2008 | 368.84 |
| 18 | 2007 | 374.12 |
| 19 | 2006 | 376.14 |
| 20 | 2005 | 382.55 |
| 21 | 2004 | 384.75 |
| 22 | 2003 | 385.51 |
| 23 | 2002 | 391.11 |
| 24 | 2001 | 395.27 |
| 25 | 2000 | 395.69 |
| 26 | 1999 | 399.43 |
| 27 | 1998 | 396.06 |
| 28 | 1997 | 390.93 |
| 29 | 1996 | 388.61 |
| 30 | 1995 | 380.44 |
| 31 | 1994 | 372.50 |
| 32 | 1993 | 360.61 |
| 33 | 1992 | 354.58 |
| 34 | 1991 | 349.94 |
| 35 | 1990 | 345.61 |
| 36 | 1989 | 341.93 |
| 37 | 1988 | 339.25 |
| 38 | 1987 | 338.32 |
| 39 | 1986 | 341.70 |
| 40 | 1985 | 337.38 |
| 41 | 1984 | 347.12 |
| 42 | 1983 | 345.52 |
| 43 | 1982 | 350.81 |
| 44 | 1981 | 357.32 |
| 45 | 1980 | 361.89 |
| 46 | 1979 | 366.46 |
| 47 | 1978 | 367.58 |
| 48 | 1977 | 371.28 |
| 49 | 1976 | 371.97 |
| 50 | 1975 | 373.37 |
| 51 | 1974 | 373.85 |
| 52 | 1973 | 377.12 |
| 53 | 1972 | 380.31 |
| 54 | 1971 | 386.17 |
| 55 | 1970 | 389.06 |
| 56 | 1969 | 395.08 |
| 57 | 1968 | 400.97 |
| 58 | 1967 | 406.14 |
| 59 | 1966 | 411.14 |
| 60 | 1965 | 412.73 |
| 61 | 1964 | 419.90 |
| 62 | 1963 | 423.08 |
| 63 | 1962 | 426.53 |
| 64 | 1961 | 747.95 |
| 65 | 1960 | 753.27 |
