| 序号 |
时间(年) |
数据(单位：‰) |
| 1 |
2024 |
|
| 2 |
2023 |
|
| 3 |
2022 |
|
| 4 |
2021 |
|
| 5 |
2020 |
|
| 6 |
2019 |
|
| 7 |
2018 |
182.86 |
| 8 |
2017 |
185.93 |
| 9 |
2016 |
190.62 |
| 10 |
2015 |
192.26 |
| 11 |
2014 |
195.38 |
| 12 |
2013 |
198.91 |
| 13 |
2012 |
201.86 |
| 14 |
2011 |
205.25 |
| 15 |
2010 |
208.04 |
| 16 |
2009 |
210.88 |
| 17 |
2008 |
214.67 |
| 18 |
2007 |
217.02 |
| 19 |
2006 |
217.88 |
| 20 |
2005 |
228.56 |
| 21 |
2004 |
235.32 |
| 22 |
2003 |
233.31 |
| 23 |
2002 |
234.36 |
| 24 |
2001 |
236.80 |
| 25 |
2000 |
239.77 |
| 26 |
1999 |
235.38 |
| 27 |
1998 |
230.48 |
| 28 |
1997 |
235.43 |
| 29 |
1996 |
247.88 |
| 30 |
1995 |
255.29 |
| 31 |
1994 |
244.21 |
| 32 |
1993 |
242.55 |
| 33 |
1992 |
240.62 |
| 34 |
1991 |
239.27 |
| 35 |
1990 |
239.38 |
| 36 |
1989 |
239.38 |
| 37 |
1988 |
241.36 |
| 38 |
1987 |
241.39 |
| 39 |
1986 |
254.90 |
| 40 |
1985 |
265.31 |
| 41 |
1984 |
276.27 |
| 42 |
1983 |
288.49 |
| 43 |
1982 |
298.02 |
| 44 |
1981 |
308.02 |
| 45 |
1980 |
315.19 |
| 46 |
1979 |
323.33 |
| 47 |
1978 |
325.67 |
| 48 |
1977 |
327.59 |
| 49 |
1976 |
330.51 |
| 50 |
1975 |
339.05 |
| 51 |
1974 |
347.58 |
| 52 |
1973 |
356.31 |
| 53 |
1972 |
365.60 |
| 54 |
1971 |
371.59 |
| 55 |
1970 |
381.54 |
| 56 |
1969 |
391.39 |
| 57 |
1968 |
399.90 |
| 58 |
1967 |
406.00 |
| 59 |
1966 |
412.59 |
| 60 |
1965 |
419.45 |
| 61 |
1964 |
430.34 |
| 62 |
1963 |
442.28 |
| 63 |
1962 |
447.65 |
| 64 |
1961 |
454.10 |
| 65 |
1960 |
475.74 |
