| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2020 | |
| 3 | 2012 | |
| 4 | 2011 | |
| 5 | 2010 | |
| 6 | 2009 | |
| 7 | 2008 | 9.15 |
| 8 | 2007 | 10.08 |
| 9 | 2006 | 9.73 |
| 10 | 2005 | 11.36 |
| 11 | 2004 | 11.57 |
| 12 | 2003 | 7.75 |
| 13 | 2002 | 10.29 |
| 14 | 2001 | 10.21 |
| 15 | 2000 | 11.47 |
| 16 | 1999 | 11.01 |
