| 年度 | 数值 | 单位 | 发布日期 |
| 2004 | 2120 | 千吨 | 2026-9 |
| 2003 | 2125 | 千吨 | 2026-9 |
| 2002 | 2230 | 千吨 | 2026-9 |
| 2001 | 2250 | 千吨 | 2026-9 |
| 2000 | 2060 | 千吨 | 2026-9 |
| 1999 | 2130 | 千吨 | 2026-9 |
| 1998 | 2142 | 千吨 | 2026-9 |
| 1997 | 2112 | 千吨 | 2026-9 |
| 1996 | 1982 | 千吨 | 2026-9 |
| 1995 | 1905 | 千吨 | 2026-9 |
| 1994 | 1800 | 千吨 | 2026-9 |
| 1993 | 1700 | 千吨 | 2026-9 |
| 1992 | 1590 | 千吨 | 2026-9 |
| 1991 | 1490 | 千吨 | 2026-9 |
| 1990 | 1420 | 千吨 | 2026-9 |
| 1989 | 1270 | 千吨 | 2026-9 |
| 1988 | 1154 | 千吨 | 2026-9 |
| 1987 | 1133 | 千吨 | 2026-9 |
| 1986 | 1130 | 千吨 | 2026-9 |
| 1985 | 1040 | 千吨 | 2026-9 |
| 1984 | 906 | 千吨 | 2026-9 |
| 1983 | 927 | 千吨 | 2026-9 |
| 1982 | 952 | 千吨 | 2026-9 |
| 1981 | 976 | 千吨 | 2026-9 |
| 1980 | 962 | 千吨 | 2026-9 |
| 1979 | 954 | 千吨 | 2026-9 |
| 1978 | 978 | 千吨 | 2026-9 |
| 1977 | 1003 | 千吨 | 2026-9 |
| 1976 | 1022 | 千吨 | 2026-9 |
| 1975 | 956 | 千吨 | 2026-9 |
| 1974 | 906 | 千吨 | 2026-9 |
| 1973 | 855 | 千吨 | 2026-9 |
| 1972 | 1075 | 千吨 | 2026-9 |
| 1971 | 1116 | 千吨 | 2026-9 |
| 1970 | 1071 | 千吨 | 2026-9 |
| 1969 | 982 | 千吨 | 2026-9 |
| 1968 | 911 | 千吨 | 2026-9 |
| 1967 | 847 | 千吨 | 2026-9 |
| 1966 | 830 | 千吨 | 2026-9 |
| 1965 | 810 | 千吨 | 2026-9 |
| 1964 | 831 | 千吨 | 2026-9 |