| 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 | 204 | 千吨 | 2026-9 |
| 2007 | 200 | 千吨 | 2026-9 |
| 2006 | 177 | 千吨 | 2026-9 |
| 2005 | 177 | 千吨 | 2026-9 |
| 2004 | 165 | 千吨 | 2026-9 |
| 2003 | 202 | 千吨 | 2026-9 |
| 2002 | 192 | 千吨 | 2026-9 |
| 2001 | 164 | 千吨 | 2026-9 |
| 2000 | 171 | 千吨 | 2026-9 |
| 1999 | 169 | 千吨 | 2026-9 |
| 1998 | 136 | 千吨 | 2026-9 |
| 1997 | 145 | 千吨 | 2026-9 |
| 1996 | 132 | 千吨 | 2026-9 |
| 1995 | 122 | 千吨 | 2026-9 |
| 1994 | 125 | 千吨 | 2026-9 |
| 1993 | 112 | 千吨 | 2026-9 |
| 1992 | 104 | 千吨 | 2026-9 |
| 1991 | 104 | 千吨 | 2026-9 |
| 1990 | 97 | 千吨 | 2026-9 |
| 1989 | 98 | 千吨 | 2026-9 |
| 1988 | 100 | 千吨 | 2026-9 |
| 1987 | 110 | 千吨 | 2026-9 |
| 1986 | 121 | 千吨 | 2026-9 |
| 1985 | 119 | 千吨 | 2026-9 |
| 1984 | 95 | 千吨 | 2026-9 |
| 1983 | 81 | 千吨 | 2026-9 |
| 1982 | 86 | 千吨 | 2026-9 |
| 1981 | 84 | 千吨 | 2026-9 |
| 1980 | 77 | 千吨 | 2026-9 |
| 1979 | 72 | 千吨 | 2026-9 |
| 1978 | 68 | 千吨 | 2026-9 |