| 序号 | 时间 (年) |
数据 (%) |
|---|---|---|
| 1 | 2021 | |
| 2 | 2019 | |
| 3 | 2018 | |
| 4 | 2017 | |
| 5 | 2016 | |
| 6 | 2015 | |
| 7 | 2014 | 33.10 |
| 8 | 2013 | 30.93 |
| 9 | 2012 | 27.94 |
| 10 | 2011 | 21.53 |
| 11 | 2010 | 25.27 |
| 12 | 2009 | 22.89 |
| 13 | 2008 | 23.03 |
| 14 | 2007 | 23.26 |
| 15 | 2006 | 22.61 |
| 16 | 2005 | 24.09 |
| 17 | 2004 | 23.80 |
| 18 | 1999 | 24.90 |
| 19 | 1995 | 20.80 |
