| 序号 | 时间 (年) |
数据 (千吨) |
|---|---|---|
| 1 | 2025 | |
| 2 | 2024 | |
| 3 | 2023 | |
| 4 | 2022 | |
| 5 | 2021 | |
| 6 | 2020 | |
| 7 | 2018 | 20.00 |
| 8 | 2017 | 24.00 |
| 9 | 2016 | 10.00 |
| 10 | 2015 | 8.00 |
| 11 | 2014 | 6.00 |
| 12 | 2012 | 5.00 |
| 13 | 2011 | 7.00 |
| 14 | 2010 | 4.00 |
| 15 | 2009 | 15.00 |
| 16 | 2008 | 23.00 |
| 17 | 2007 | 22.00 |
| 18 | 2006 | 23.00 |
| 19 | 1987 | 4.00 |
| 20 | 1986 | 9.00 |
| 21 | 1985 | 9.00 |
| 22 | 1984 | 7.00 |
| 23 | 1983 | 28.00 |
| 24 | 1982 | 10.00 |
| 25 | 1981 | 19.00 |
| 26 | 1980 | 24.00 |
| 27 | 1979 | 25.00 |
| 28 | 1978 | 20.00 |
| 29 | 1977 | 20.00 |
| 30 | 1976 | 15.00 |
