| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2019 | 22 | 千吨 | 2026-9 |
| 2018 | 22 | 千吨 | 2026-9 |
| 2017 | 22 | 千吨 | 2026-9 |
| 2016 | 22 | 千吨 | 2026-9 |
| 2015 | 22 | 千吨 | 2026-9 |
| 2014 | 23 | 千吨 | 2026-9 |
| 2013 | 23 | 千吨 | 2026-9 |
| 2012 | 23 | 千吨 | 2026-9 |
| 2011 | 23 | 千吨 | 2026-9 |
| 2010 | 22 | 千吨 | 2026-9 |
| 2009 | 23 | 千吨 | 2026-9 |
| 2008 | 22 | 千吨 | 2026-9 |
| 2007 | 24 | 千吨 | 2026-9 |
| 2006 | 26 | 千吨 | 2026-9 |
| 2005 | 26 | 千吨 | 2026-9 |
| 2004 | 23 | 千吨 | 2026-9 |
| 2003 | 24 | 千吨 | 2026-9 |
| 2002 | 30 | 千吨 | 2026-9 |
| 2001 | 31 | 千吨 | 2026-9 |
| 2000 | 38 | 千吨 | 2026-9 |
| 1999 | 35 | 千吨 | 2026-9 |
| 1998 | 40 | 千吨 | 2026-9 |
| 1997 | 48 | 千吨 | 2026-9 |
| 1996 | 52 | 千吨 | 2026-9 |
| 1995 | 60 | 千吨 | 2026-9 |
| 1994 | 63 | 千吨 | 2026-9 |
| 1993 | 72 | 千吨 | 2026-9 |
| 1992 | 67 | 千吨 | 2026-9 |
| 1991 | 70 | 千吨 | 2026-9 |
| 1990 | 69 | 千吨 | 2026-9 |
| 1989 | 66 | 千吨 | 2026-9 |
| 1988 | 64 | 千吨 | 2026-9 |
| 1987 | 68 | 千吨 | 2026-9 |
| 1986 | 73 | 千吨 | 2026-9 |
| 1985 | 84 | 千吨 | 2026-9 |
| 1984 | 57 | 千吨 | 2026-9 |
| 1983 | 59 | 千吨 | 2026-9 |
| 1982 | 90 | 千吨 | 2026-9 |