| 年度 | 数值 | 单位 | 发布日期 |
| 2019 | 10 | 千吨 | 2026-9 |
| 2018 | 10 | 千吨 | 2026-9 |
| 2017 | 20 | 千吨 | 2026-9 |
| 2016 | 58 | 千吨 | 2026-9 |
| 2015 | 195 | 千吨 | 2026-9 |
| 2014 | 134 | 千吨 | 2026-9 |
| 2013 | 170 | 千吨 | 2026-9 |
| 2012 | 201 | 千吨 | 2026-9 |
| 2011 | 188 | 千吨 | 2026-9 |
| 2010 | 162 | 千吨 | 2026-9 |
| 2009 | 155 | 千吨 | 2026-9 |
| 2008 | 304 | 千吨 | 2026-9 |
| 2007 | 123 | 千吨 | 2026-9 |
| 2006 | 121 | 千吨 | 2026-9 |
| 2005 | 95 | 千吨 | 2026-9 |
| 2004 | 90 | 千吨 | 2026-9 |
| 2003 | 75 | 千吨 | 2026-9 |
| 2002 | 78 | 千吨 | 2026-9 |
| 2001 | 90 | 千吨 | 2026-9 |
| 2000 | 67 | 千吨 | 2026-9 |
| 1999 | 67 | 千吨 | 2026-9 |
| 1998 | 60 | 千吨 | 2026-9 |
| 1997 | 20 | 千吨 | 2026-9 |
| 1996 | 62 | 千吨 | 2026-9 |
| 1995 | 66 | 千吨 | 2026-9 |
| 1994 | 36 | 千吨 | 2026-9 |
| 1993 | 54 | 千吨 | 2026-9 |
| 1992 | 54 | 千吨 | 2026-9 |
| 1991 | 82 | 千吨 | 2026-9 |
| 1990 | 14 | 千吨 | 2026-9 |
| 1989 | 45 | 千吨 | 2026-9 |
| 1988 | 115 | 千吨 | 2026-9 |
| 1987 | 73 | 千吨 | 2026-9 |
| 1986 | 33 | 千吨 | 2026-9 |
| 1985 | 73 | 千吨 | 2026-9 |
| 1984 | 100 | 千吨 | 2026-9 |
| 1983 | 71 | 千吨 | 2026-9 |
| 1982 | 88 | 千吨 | 2026-9 |