| 年度 | 数值 | 单位 | 发布日期 |
| 2025/2026 | 115 | 千吨 | 2026-9 |
| 2024/2025 | 114 | 千吨 | 2026-9 |
| 2023/2024 | 102 | 千吨 | 2026-9 |
| 2022/2023 | 92 | 千吨 | 2026-9 |
| 2021/2022 | 103 | 千吨 | 2026-9 |
| 2020/2021 | 101 | 千吨 | 2026-9 |
| 2019/2020 | 109 | 千吨 | 2026-9 |
| 2018/2019 | 106 | 千吨 | 2026-9 |
| 2017/2018 | 93 | 千吨 | 2026-9 |
| 2016/2017 | 77 | 千吨 | 2026-9 |
| 1990/1991 | 259 | 千吨 | 2026-9 |
| 1989/1990 | 274 | 千吨 | 2026-9 |
| 1988/1989 | 265 | 千吨 | 2026-9 |
| 1987/1988 | 265 | 千吨 | 2026-9 |
| 1986/1987 | 249 | 千吨 | 2026-9 |
| 1985/1986 | 236 | 千吨 | 2026-9 |
| 1984/1985 | 236 | 千吨 | 2026-9 |
| 1983/1984 | 173 | 千吨 | 2026-9 |
| 1982/1983 | 162 | 千吨 | 2026-9 |
| 1981/1982 | 213 | 千吨 | 2026-9 |
| 1980/1981 | 173 | 千吨 | 2026-9 |
| 1979/1980 | 215 | 千吨 | 2026-9 |
| 1978/1979 | 255 | 千吨 | 2026-9 |
| 1977/1978 | 191 | 千吨 | 2026-9 |
| 1976/1977 | 219 | 千吨 | 2026-9 |
| 1975/1976 | 263 | 千吨 | 2026-9 |
| 1974/1975 | 238 | 千吨 | 2026-9 |
| 1973/1974 | 229 | 千吨 | 2026-9 |
| 1972/1973 | 316 | 千吨 | 2026-9 |
| 1971/1972 | 393 | 千吨 | 2026-9 |
| 1970/1971 | 327 | 千吨 | 2026-9 |
| 1969/1970 | 392 | 千吨 | 2026-9 |
| 1968/1969 | 468 | 千吨 | 2026-9 |
| 1967/1968 | 499 | 千吨 | 2026-9 |
| 1966/1967 | 400 | 千吨 | 2026-9 |
| 1965/1966 | 309 | 千吨 | 2026-9 |
| 1964/1965 | 361 | 千吨 | 2026-9 |