| 序号 |
时间(年) |
数据(单位：‰) |
| 1 |
2024 |
|
| 2 |
2023 |
|
| 3 |
2022 |
|
| 4 |
2021 |
|
| 5 |
2020 |
|
| 6 |
2019 |
|
| 7 |
2018 |
13.32 |
| 8 |
2017 |
13.44 |
| 9 |
2016 |
13.69 |
| 10 |
2015 |
12.62 |
| 11 |
2014 |
13.10 |
| 12 |
2013 |
13.12 |
| 13 |
2012 |
13.26 |
| 14 |
2011 |
13.65 |
| 15 |
2010 |
14.14 |
| 16 |
2009 |
14.38 |
| 17 |
2008 |
14.31 |
| 18 |
2007 |
14.80 |
| 19 |
2006 |
15.53 |
| 20 |
2005 |
15.93 |
| 21 |
2004 |
15.97 |
| 22 |
2003 |
15.68 |
| 23 |
2002 |
16.42 |
| 24 |
2001 |
16.55 |
| 25 |
2000 |
16.49 |
| 26 |
1999 |
17.97 |
| 27 |
1998 |
18.19 |
| 28 |
1997 |
18.90 |
| 29 |
1996 |
19.03 |
| 30 |
1995 |
19.28 |
| 31 |
1990 |
24.34 |
| 32 |
1985 |
17.18 |
| 33 |
1980 |
24.96 |
| 34 |
1978 |
28.48 |
| 35 |
1975 |
36.50 |
| 36 |
1970 |
40.27 |
| 37 |
1965 |
48.08 |
| 38 |
1960 |
16.58 |
| 39 |
1958 |
39.32 |
| 40 |
1953 |
40.01 |
| 41 |
1950 |
40.32 |
