| 年度 | 数值 | 单位 | 发布日期 |
|---|
| 2016 | 162 | 千吨 | 2026-9 |
| 2015 | 140 | 千吨 | 2026-9 |
| 2014 | 131 | 千吨 | 2026-9 |
| 2013 | 134 | 千吨 | 2026-9 |
| 2012 | 136 | 千吨 | 2026-9 |
| 2011 | 127 | 千吨 | 2026-9 |
| 2010 | 119 | 千吨 | 2026-9 |
| 2009 | 111 | 千吨 | 2026-9 |
| 2008 | 117 | 千吨 | 2026-9 |
| 2007 | 114 | 千吨 | 2026-9 |
| 2006 | 96 | 千吨 | 2026-9 |
| 2005 | 98 | 千吨 | 2026-9 |
| 2004 | 88 | 千吨 | 2026-9 |
| 2003 | 101 | 千吨 | 2026-9 |
| 2002 | 90 | 千吨 | 2026-9 |
| 2001 | 84 | 千吨 | 2026-9 |
| 2000 | 90 | 千吨 | 2026-9 |
| 1999 | 88 | 千吨 | 2026-9 |
| 1998 | 59 | 千吨 | 2026-9 |
| 1997 | 65 | 千吨 | 2026-9 |
| 1996 | 69 | 千吨 | 2026-9 |
| 1995 | 60 | 千吨 | 2026-9 |
| 1994 | 68 | 千吨 | 2026-9 |
| 1993 | 56 | 千吨 | 2026-9 |
| 1992 | 56 | 千吨 | 2026-9 |
| 1991 | 51 | 千吨 | 2026-9 |
| 1990 | 50 | 千吨 | 2026-9 |
| 1989 | 47 | 千吨 | 2026-9 |
| 1988 | 45 | 千吨 | 2026-9 |
| 1987 | 45 | 千吨 | 2026-9 |
| 1986 | 41 | 千吨 | 2026-9 |
| 1985 | 39 | 千吨 | 2026-9 |
| 1984 | 42 | 千吨 | 2026-9 |
| 1983 | 33 | 千吨 | 2026-9 |
| 1982 | 38 | 千吨 | 2026-9 |
| 1981 | 28 | 千吨 | 2026-9 |
| 1980 | 20 | 千吨 | 2026-9 |
| 1979 | 18 | 千吨 | 2026-9 |
| 1978 | 15 | 千吨 | 2026-9 |