| 序号 | 时间 (年) |
数据 (亿米) |
|---|---|---|
| 1 | 2023 | |
| 2 | 2022 | |
| 3 | 2021 | |
| 4 | 2020 | |
| 5 | 2019 | |
| 6 | 2018 | |
| 7 | 2017 | 7.92 |
| 8 | 2016 | 10.24 |
| 9 | 2015 | 9.72 |
| 10 | 2014 | 9.80 |
| 11 | 2013 | 12.43 |
| 12 | 2012 | 10.47 |
| 13 | 2011 | 5.96 |
| 14 | 2010 | 3.88 |
| 15 | 2009 | 2.78 |
| 16 | 2008 | 3.28 |
| 17 | 2007 | 4.69 |
| 18 | 2006 | 5.49 |
| 19 | 2005 | 3.02 |
| 20 | 2000 | 2.23 |
| 21 | 1995 | 2.94 |
| 22 | 1990 | 2.33 |
| 23 | 1985 | 1.75 |
