| 序号 |
时间(年) |
数据(单位：‰) |
| 1 |
2024 |
|
| 2 |
2023 |
|
| 3 |
2022 |
|
| 4 |
2021 |
|
| 5 |
2020 |
|
| 6 |
2019 |
|
| 7 |
2018 |
2.77 |
| 8 |
2017 |
5.08 |
| 9 |
2016 |
5.25 |
| 10 |
2015 |
5.02 |
| 11 |
2014 |
4.96 |
| 12 |
2013 |
4.95 |
| 13 |
2012 |
4.93 |
| 14 |
2011 |
4.75 |
| 15 |
2010 |
4.79 |
| 16 |
2009 |
5.82 |
| 17 |
2008 |
5.79 |
| 18 |
2007 |
5.76 |
| 19 |
2006 |
5.52 |
| 20 |
2005 |
5.53 |
| 21 |
2004 |
5.51 |
| 22 |
2003 |
6.01 |
| 23 |
2002 |
6.62 |
| 24 |
2001 |
7.55 |
| 25 |
2000 |
8.29 |
| 26 |
1999 |
8.72 |
| 27 |
1998 |
9.34 |
| 28 |
1997 |
9.18 |
| 29 |
1996 |
9.82 |
| 30 |
1995 |
10.19 |
| 31 |
1994 |
8.81 |
| 32 |
1993 |
8.82 |
| 33 |
1992 |
9.50 |
| 34 |
1991 |
10.31 |
| 35 |
1990 |
11.30 |
| 36 |
1989 |
9.95 |
| 37 |
1988 |
9.74 |
| 38 |
1987 |
10.04 |
| 39 |
1986 |
10.56 |
| 40 |
1985 |
9.56 |
| 41 |
1984 |
9.88 |
| 42 |
1983 |
10.10 |
| 43 |
1982 |
11.11 |
| 44 |
1981 |
9.26 |
