单位:%
                时间范围:2002 - 2023
                            | 序号 | 时间(年) | 数据(%) | 
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | 6.10 | 
| 7 | 2017 | 7.80 | 
| 8 | 2016 | 10.50 | 
| 9 | 2015 | 12.60 | 
| 10 | 2014 | 8.70 | 
| 11 | 2013 | 11.32 | 
| 12 | 2012 | 15.00 | 
| 13 | 2011 | 13.80 | 
| 14 | 2010 | 17.10 | 
| 15 | 2009 | 17.10 | 
| 16 | 2008 | 17.50 | 
| 17 | 2007 | 12.60 | 
| 18 | 2006 | 11.10 | 
| 19 | 2005 | 8.60 | 
| 20 | 2004 | 10.50 | 
| 21 | 2003 | 13.60 | 
| 22 | 2002 | 9.40 | 
| 
 | |
| 
 | |
| 
 | |
| 
 | |
| 
 | |