| 序号 | 时间 (年) |
数据 (千克/公顷) |
|---|---|---|
| 1 | 2017 | |
| 2 | 2016 | |
| 3 | 2015 | |
| 4 | 2014 | |
| 5 | 2013 | |
| 6 | 2011 | |
| 7 | 2010 | 938.03 |
| 8 | 2009 | 1031.26 |
| 9 | 2008 | 1100.65 |
| 10 | 2007 | 1837.00 |
| 11 | 2006 | 2259.69 |
| 12 | 2005 | 1687.25 |
| 13 | 2004 | 1828.17 |
| 14 | 2003 | 1458.82 |
| 15 | 2002 | 1778.32 |
