| 序号 | 时间 (年) |
数据 (‰) |
|---|---|---|
| 1 | 2025 | |
| 2 | 2024 | |
| 3 | 2023 | |
| 4 | 2022 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 12.75 |
| 8 | 2016 | 12.18 |
| 9 | 2015 | 10.97 |
| 10 | 2014 | 10.62 |
| 11 | 2013 | 9.91 |
| 12 | 2012 | 9.31 |
| 13 | 2011 | 9.72 |
| 14 | 2010 | 9.64 |
| 15 | 2009 | 10.28 |
| 16 | 2008 | 9.73 |
| 17 | 2007 | 9.10 |
