| 序号 |
时间(年) |
数据(单位：‰) |
| 1 |
2024 |
|
| 2 |
2023 |
|
| 3 |
2022 |
|
| 4 |
2021 |
|
| 5 |
2020 |
|
| 6 |
2019 |
|
| 7 |
2018 |
18.23 |
| 8 |
2017 |
13.92 |
| 9 |
2016 |
14.04 |
| 10 |
2015 |
12.12 |
| 11 |
2014 |
18.18 |
| 12 |
2013 |
15.47 |
| 13 |
2012 |
7.31 |
| 14 |
2011 |
7.08 |
| 15 |
2010 |
10.05 |
| 16 |
2009 |
5.54 |
| 17 |
2008 |
5.78 |
| 18 |
2007 |
5.94 |
| 19 |
2006 |
4.76 |
| 20 |
2005 |
5.38 |
| 21 |
2004 |
5.17 |
| 22 |
2003 |
4.69 |
| 23 |
2002 |
4.42 |
| 24 |
2001 |
5.40 |
| 25 |
2000 |
8.88 |
| 26 |
1999 |
6.61 |
| 27 |
1998 |
5.06 |
| 28 |
1997 |
6.42 |
| 29 |
1996 |
10.39 |
| 30 |
1995 |
17.46 |
| 31 |
1994 |
12.73 |
| 32 |
1993 |
10.99 |
| 33 |
1992 |
12.33 |
| 34 |
1990 |
21.86 |
| 35 |
1989 |
19.42 |
| 36 |
1988 |
15.71 |
| 37 |
1987 |
18.01 |
| 38 |
1986 |
15.82 |
| 39 |
1985 |
16.32 |
| 40 |
1983 |
15.11 |
| 41 |
1982 |
21.70 |
| 42 |
1973 |
29.45 |
| 43 |
1972 |
29.96 |
| 44 |
1971 |
31.05 |
| 45 |
1965 |
35.25 |
| 46 |
1964 |
30.64 |
| 47 |
1963 |
38.25 |
| 48 |
1962 |
32.69 |
| 49 |
1961 |
10.53 |
| 50 |
1960 |
15.33 |
| 51 |
1959 |
30.43 |
| 52 |
1958 |
28.37 |
| 53 |
1957 |
35.01 |
| 54 |
1956 |
25.37 |
| 55 |
1955 |
24.26 |
| 56 |
1954 |
36.28 |
| 57 |
1953 |
22.11 |
| 58 |
1952 |
18.34 |
