| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2015 | 385 | 千吨 | 2026-9 |
| 2014 | 406 | 千吨 | 2026-9 |
| 2013 | 389 | 千吨 | 2026-9 |
| 2012 | 352 | 千吨 | 2026-9 |
| 2011 | 349 | 千吨 | 2026-9 |
| 2010 | 344 | 千吨 | 2026-9 |
| 2009 | 325 | 千吨 | 2026-9 |
| 2008 | 322 | 千吨 | 2026-9 |
| 2007 | 388 | 千吨 | 2026-9 |
| 2006 | 371 | 千吨 | 2026-9 |
| 2005 | 348 | 千吨 | 2026-9 |
| 2004 | 337 | 千吨 | 2026-9 |
| 2003 | 314 | 千吨 | 2026-9 |
| 2002 | 342 | 千吨 | 2026-9 |
| 2001 | 274 | 千吨 | 2026-9 |
| 2000 | 269 | 千吨 | 2026-9 |
| 1999 | 278 | 千吨 | 2026-9 |
| 1998 | 315 | 千吨 | 2026-9 |
| 1997 | 308 | 千吨 | 2026-9 |
| 1996 | 299 | 千吨 | 2026-9 |
| 1978 | 88 | 千吨 | 2026-9 |
| 1977 | 80 | 千吨 | 2026-9 |
| 1976 | 66 | 千吨 | 2026-9 |
| 1975 | 57 | 千吨 | 2026-9 |
| 1974 | 55 | 千吨 | 2026-9 |
| 1973 | 55 | 千吨 | 2026-9 |
| 1972 | 53 | 千吨 | 2026-9 |
| 1971 | 51 | 千吨 | 2026-9 |
| 1970 | 52 | 千吨 | 2026-9 |
| 1969 | 46 | 千吨 | 2026-9 |
| 1968 | 43 | 千吨 | 2026-9 |
| 1967 | 44 | 千吨 | 2026-9 |
| 1966 | 43 | 千吨 | 2026-9 |
| 1965 | 45 | 千吨 | 2026-9 |
| 1964 | 39 | 千吨 | 2026-9 |
| 1963 | 36 | 千吨 | 2026-9 |
| 1962 | 36 | 千吨 | 2026-9 |
| 1961 | 37 | 千吨 | 2026-9 |
| 1960 | 37 | 千吨 | 2026-9 |