|
| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Coal gas, water gas, producer gas & sim. gases (excl. petroleum gases & oth ... | $9,721 | $22,067 | $182,529 | $425,752 | $540,401 | $266,915 | $600,982 |
| Total | $9,721 | $22,067 | $182,529 | $425,752 | $540,401 | $266,915 | $600,982 |
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