| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2016 | 344 | 千吨 | 2026-9 |
| 2015 | 312 | 千吨 | 2026-9 |
| 2014 | 299 | 千吨 | 2026-9 |
| 2013 | 272 | 千吨 | 2026-9 |
| 2012 | 300 | 千吨 | 2026-9 |
| 2011 | 410 | 千吨 | 2026-9 |
| 2010 | 295 | 千吨 | 2026-9 |
| 2009 | 253 | 千吨 | 2026-9 |
| 2008 | 236 | 千吨 | 2026-9 |
| 2007 | 215 | 千吨 | 2026-9 |
| 2006 | 243 | 千吨 | 2026-9 |
| 2005 | 222 | 千吨 | 2026-9 |
| 2004 | 244 | 千吨 | 2026-9 |
| 2003 | 154 | 千吨 | 2026-9 |
| 2002 | 164 | 千吨 | 2026-9 |
| 2001 | 183 | 千吨 | 2026-9 |
| 2000 | 168 | 千吨 | 2026-9 |
| 1999 | 275 | 千吨 | 2026-9 |
| 1998 | 188 | 千吨 | 2026-9 |
| 1997 | 168 | 千吨 | 2026-9 |
| 1996 | 231 | 千吨 | 2026-9 |
| 1995 | 176 | 千吨 | 2026-9 |
| 1994 | 498 | 千吨 | 2026-9 |
| 1993 | 373 | 千吨 | 2026-9 |
| 1992 | 300 | 千吨 | 2026-9 |
| 1991 | 246 | 千吨 | 2026-9 |
| 1990 | 208 | 千吨 | 2026-9 |
| 1989 | 172 | 千吨 | 2026-9 |
| 1988 | 127 | 千吨 | 2026-9 |
| 1987 | 124 | 千吨 | 2026-9 |
| 1986 | 97 | 千吨 | 2026-9 |
| 1985 | 92 | 千吨 | 2026-9 |
| 1984 | 65 | 千吨 | 2026-9 |
| 1983 | 56 | 千吨 | 2026-9 |
| 1982 | 60 | 千吨 | 2026-9 |
| 1981 | 56 | 千吨 | 2026-9 |
| 1980 | 66 | 千吨 | 2026-9 |
| 1979 | 61 | 千吨 | 2026-9 |
| 1978 | 58 | 千吨 | 2026-9 |
| 1977 | 45 | 千吨 | 2026-9 |
| 1976 | 41 | 千吨 | 2026-9 |
| 1975 | 25 | 千吨 | 2026-9 |
| 1974 | 26 | 千吨 | 2026-9 |
| 1973 | 23 | 千吨 | 2026-9 |
| 1972 | 21 | 千吨 | 2026-9 |
| 1971 | 19 | 千吨 | 2026-9 |
| 1970 | 18 | 千吨 | 2026-9 |
| 1969 | 13 | 千吨 | 2026-9 |