| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2015 | 533 | 千吨 | 2026-9 |
| 2014 | 510 | 千吨 | 2026-9 |
| 2013 | 532 | 千吨 | 2026-9 |
| 2012 | 514 | 千吨 | 2026-9 |
| 2011 | 572 | 千吨 | 2026-9 |
| 2010 | 638 | 千吨 | 2026-9 |
| 2009 | 457 | 千吨 | 2026-9 |
| 2008 | 453 | 千吨 | 2026-9 |
| 2007 | 491 | 千吨 | 2026-9 |
| 2006 | 463 | 千吨 | 2026-9 |
| 2005 | 374 | 千吨 | 2026-9 |
| 2004 | 437 | 千吨 | 2026-9 |
| 2003 | 375 | 千吨 | 2026-9 |
| 2002 | 365 | 千吨 | 2026-9 |
| 2001 | 332 | 千吨 | 2026-9 |
| 2000 | 293 | 千吨 | 2026-9 |
| 1999 | 318 | 千吨 | 2026-9 |
| 1998 | 359 | 千吨 | 2026-9 |
| 1997 | 360 | 千吨 | 2026-9 |
| 1996 | 347 | 千吨 | 2026-9 |
| 1978 | 108 | 千吨 | 2026-9 |
| 1977 | 110 | 千吨 | 2026-9 |
| 1976 | 88 | 千吨 | 2026-9 |
| 1975 | 72 | 千吨 | 2026-9 |
| 1974 | 60 | 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 | 47 | 千吨 | 2026-9 |
| 1964 | 39 | 千吨 | 2026-9 |
| 1963 | 37 | 千吨 | 2026-9 |
| 1962 | 36 | 千吨 | 2026-9 |
| 1961 | 38 | 千吨 | 2026-9 |
| 1960 | 37 | 千吨 | 2026-9 |