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USD ($)
USD ($) / shares
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<td style="FONT-FAMILY: times" width="35"></td>
<td style="FONT-FAMILY: times" width="27"></td>
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<td style="FONT-FAMILY: times" width="35"></td>
<td style="FONT-FAMILY: times" width="27"></td>
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<th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times" align="center" colspan="8"><font size="1"><b>For the Year Ended December 31, </b></font></th>
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<th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times" align="center" colspan="2"><font size="1"><b>2010 </b></font></th>
<th style="FONT-FAMILY: times"><font size="1"> </font></th>
<th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times" align="center" colspan="2"><font size="1"><b>2009 </b></font></th>
<th style="FONT-FAMILY: times"><font size="1"> </font></th>
<th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times" align="center" colspan="2"><font size="1"><b>2008 </b></font></th>
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<p style="MARGIN-LEFT: 9pt; TEXT-INDENT: -9pt; FONT-FAMILY: times"><font size="2">Weighted average ownership interest</font></p></td>
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<td style="FONT-FAMILY: times" valign="bottom" align="right"><font size="2"><b>83.2%</b></font></td>
<td style="FONT-FAMILY: times" valign="bottom"><font size="2"> </font></td>
<td style="FONT-FAMILY: times" valign="bottom"><font size="2"> </font></td>
<td style="FONT-FAMILY: times" valign="bottom" align="right"><font size="2">82.4%</font></td>
<td style="FONT-FAMILY: times" valign="bottom"><font size="2"> </font></td>
<td style="FONT-FAMILY: times" valign="bottom"><font size="2"> </font></td>
<td style="FONT-FAMILY: times" valign="bottom" align="right"><font size="2">79.8%</font></td>
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