| 年度 | 数值 | 单位 | 发布日期 |
| 2019 | 32 | 千吨 | 2026-9 |
| 2018 | 32 | 千吨 | 2026-9 |
| 2017 | 42 | 千吨 | 2026-9 |
| 2016 | 80 | 千吨 | 2026-9 |
| 2015 | 217 | 千吨 | 2026-9 |
| 2014 | 157 | 千吨 | 2026-9 |
| 2013 | 193 | 千吨 | 2026-9 |
| 2012 | 224 | 千吨 | 2026-9 |
| 2011 | 211 | 千吨 | 2026-9 |
| 2010 | 184 | 千吨 | 2026-9 |
| 2009 | 178 | 千吨 | 2026-9 |
| 2008 | 326 | 千吨 | 2026-9 |
| 2007 | 147 | 千吨 | 2026-9 |
| 2006 | 147 | 千吨 | 2026-9 |
| 2005 | 152 | 千吨 | 2026-9 |
| 2004 | 146 | 千吨 | 2026-9 |
| 2003 | 138 | 千吨 | 2026-9 |
| 2002 | 149 | 千吨 | 2026-9 |
| 2001 | 163 | 千吨 | 2026-9 |
| 2000 | 144 | 千吨 | 2026-9 |
| 1999 | 137 | 千吨 | 2026-9 |
| 1998 | 137 | 千吨 | 2026-9 |
| 1997 | 101 | 千吨 | 2026-9 |
| 1996 | 124 | 千吨 | 2026-9 |
| 1995 | 130 | 千吨 | 2026-9 |
| 1994 | 104 | 千吨 | 2026-9 |
| 1993 | 136 | 千吨 | 2026-9 |
| 1992 | 146 | 千吨 | 2026-9 |
| 1991 | 165 | 千吨 | 2026-9 |
| 1990 | 118 | 千吨 | 2026-9 |
| 1989 | 151 | 千吨 | 2026-9 |
| 1988 | 179 | 千吨 | 2026-9 |
| 1987 | 141 | 千吨 | 2026-9 |
| 1986 | 117 | 千吨 | 2026-9 |
| 1985 | 157 | 千吨 | 2026-9 |
| 1984 | 157 | 千吨 | 2026-9 |
| 1983 | 130 | 千吨 | 2026-9 |
| 1982 | 178 | 千吨 | 2026-9 |