| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 1998/1999 | 1.124 | 千吨 | 2026-9 |
| 1997/1998 | 1.124 | 千吨 | 2026-9 |
| 1995/1996 | 2.248 | 千吨 | 2026-9 |
| 1994/1995 | 2.248 | 千吨 | 2026-9 |
| 1993/1994 | 3.372 | 千吨 | 2026-9 |
| 1992/1993 | 3.372 | 千吨 | 2026-9 |
| 1991/1992 | 13.488 | 千吨 | 2026-9 |
| 1990/1991 | 15.736 | 千吨 | 2026-9 |
| 1989/1990 | 15.736 | 千吨 | 2026-9 |
| 1988/1989 | 16.86 | 千吨 | 2026-9 |
| 1987/1988 | 15.736 | 千吨 | 2026-9 |
| 1986/1987 | 14.612 | 千吨 | 2026-9 |
| 1985/1986 | 11.24 | 千吨 | 2026-9 |
| 1984/1985 | 12.364 | 千吨 | 2026-9 |
| 1983/1984 | 10.116 | 千吨 | 2026-9 |
| 1982/1983 | 10.116 | 千吨 | 2026-9 |
| 1981/1982 | 7.868 | 千吨 | 2026-9 |
| 1980/1981 | 11.24 | 千吨 | 2026-9 |
| 1979/1980 | 11.24 | 千吨 | 2026-9 |
| 1978/1979 | 17.984 | 千吨 | 2026-9 |
| 1977/1978 | 13.488 | 千吨 | 2026-9 |
| 1976/1977 | 30.348 | 千吨 | 2026-9 |
| 1975/1976 | 53.952 | 千吨 | 2026-9 |
| 1974/1975 | 37.092 | 千吨 | 2026-9 |
| 1973/1974 | 51.704 | 千吨 | 2026-9 |
| 1972/1973 | 73.06 | 千吨 | 2026-9 |