年份 | 分类 | 数值 |
2000 | United States : coal million MMBtu | 442.81 |
2001 | United States : coal million MMBtu | 421.08 |
2002 | United States : coal million MMBtu | 416.70 |
2003 | United States : coal million MMBtu | 564.50 |
2004 | United States : coal million MMBtu | 548.67 |
2005 | United States : coal million MMBtu | 532.56 |
2006 | United States : coal million MMBtu | 521.72 |
2007 | United States : coal million MMBtu | 503.10 |
2008 | United States : coal million MMBtu | 462.67 |
2009 | United States : coal million MMBtu | 490.93 |
2010 | United States : coal million MMBtu | 479.82 |
2011 | United States : coal million MMBtu | 420.92 |
2012 | United States : coal million MMBtu | 401.11 |
2013 | United States : coal million MMBtu | 391.55 |
2014 | United States : coal million MMBtu | 356.89 |