| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2016 | 256 | 千吨 | 2026-9 |
| 2015 | 232 | 千吨 | 2026-9 |
| 2014 | 221 | 千吨 | 2026-9 |
| 2013 | 224 | 千吨 | 2026-9 |
| 2012 | 228 | 千吨 | 2026-9 |
| 2011 | 217 | 千吨 | 2026-9 |
| 2010 | 208 | 千吨 | 2026-9 |
| 2009 | 201 | 千吨 | 2026-9 |
| 2008 | 200 | 千吨 | 2026-9 |
| 2007 | 196 | 千吨 | 2026-9 |
| 2006 | 174 | 千吨 | 2026-9 |
| 2005 | 172 | 千吨 | 2026-9 |
| 2004 | 162 | 千吨 | 2026-9 |
| 2003 | 194 | 千吨 | 2026-9 |
| 2002 | 177 | 千吨 | 2026-9 |
| 2001 | 152 | 千吨 | 2026-9 |
| 2000 | 152 | 千吨 | 2026-9 |
| 1999 | 152 | 千吨 | 2026-9 |
| 1998 | 123 | 千吨 | 2026-9 |
| 1997 | 129 | 千吨 | 2026-9 |
| 1996 | 114 | 千吨 | 2026-9 |
| 1995 | 109 | 千吨 | 2026-9 |
| 1994 | 113 | 千吨 | 2026-9 |
| 1993 | 103 | 千吨 | 2026-9 |
| 1992 | 99 | 千吨 | 2026-9 |
| 1991 | 102 | 千吨 | 2026-9 |
| 1990 | 92 | 千吨 | 2026-9 |
| 1989 | 95 | 千吨 | 2026-9 |
| 1988 | 97 | 千吨 | 2026-9 |
| 1987 | 107 | 千吨 | 2026-9 |
| 1986 | 108 | 千吨 | 2026-9 |
| 1985 | 96 | 千吨 | 2026-9 |
| 1984 | 92 | 千吨 | 2026-9 |
| 1983 | 78 | 千吨 | 2026-9 |
| 1982 | 86 | 千吨 | 2026-9 |
| 1981 | 84 | 千吨 | 2026-9 |
| 1980 | 74 | 千吨 | 2026-9 |
| 1979 | 69 | 千吨 | 2026-9 |
| 1978 | 65 | 千吨 | 2026-9 |