Based on information so far I would think on the lines of
<TABLE style="BACKGROUND-COLOR: #ffffff; PADDING-LEFT: 2pt; PADDING-RIGHT: 2pt; FONT-FAMILY: Calibri,Arial; FONT-SIZE: 11pt" border=1 cellSpacing=0 cellPadding=0><COLGROUP><COL style="WIDTH: 30px; FONT-WEIGHT: bold"><COL style="WIDTH: 64px"><COL style="WIDTH: 75px"><COL style="WIDTH: 85px"><COL style="WIDTH: 64px"><COL style="WIDTH: 64px"><COL style="WIDTH: 64px"><COL style="WIDTH: 64px"><COL style="WIDTH: 75px"><COL style="WIDTH: 75px"></COLGROUP><TBODY><TR style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt; FONT-WEIGHT: bold"><TD> </TD><TD>A</TD><TD>B</TD><TD>C</TD><TD>D</TD><TD>E</TD><TD>F</TD><TD>G</TD><TD>H</TD><TD>I</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">1</TD><TD> </TD><TD>Date</TD><TD>random data</TD><TD> </TD><TD>count </TD><TD>sum </TD><TD> </TD><TD> </TD><TD> </TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">2</TD><TD> </TD><TD style="TEXT-ALIGN: right">01/01/2011</TD><TD style="TEXT-ALIGN: right">0.227634717</TD><TD> </TD><TD style="TEXT-ALIGN: right">4</TD><TD style="TEXT-ALIGN: right">1.42315</TD><TD>Jan</TD><TD style="TEXT-ALIGN: right">02/01/2011</TD><TD style="TEXT-ALIGN: right">29/01/2011</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">3</TD><TD>Jan</TD><TD style="TEXT-ALIGN: right">02/01/2011</TD><TD style="TEXT-ALIGN: right">0.233796476</TD><TD> </TD><TD> </TD><TD> </TD><TD>Feb</TD><TD style="TEXT-ALIGN: right">30/01/2011</TD><TD style="TEXT-ALIGN: right">26/02/2011</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">4</TD><TD> </TD><TD style="TEXT-ALIGN: right">09/01/2011</TD><TD style="TEXT-ALIGN: right">0.280080133</TD><TD> </TD><TD> </TD><TD> </TD><TD>Mar</TD><TD style="TEXT-ALIGN: right">27/02/2011</TD><TD style="TEXT-ALIGN: right">02/04/2011</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">5</TD><TD> </TD><TD style="TEXT-ALIGN: right">16/01/2011</TD><TD style="TEXT-ALIGN: right">0.439367126</TD><TD> </TD><TD> </TD><TD> </TD><TD>Apr</TD><TD style="TEXT-ALIGN: right">03/04/2011</TD><TD style="TEXT-ALIGN: right">30/04/2011</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">6</TD><TD> </TD><TD style="TEXT-ALIGN: right">23/01/2011</TD><TD style="TEXT-ALIGN: right">0.469906158</TD><TD> </TD><TD> </TD><TD> </TD><TD>May</TD><TD style="TEXT-ALIGN: right">01/05/2011</TD><TD style="TEXT-ALIGN: right">28/05/2011</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">7</TD><TD>Feb</TD><TD style="TEXT-ALIGN: right">30/01/2011</TD><TD style="TEXT-ALIGN: right">0.315004064</TD><TD> </TD><TD> </TD><TD> </TD><TD>Jun</TD><TD style="TEXT-ALIGN: right">29/05/2011</TD><TD style="TEXT-ALIGN: right">02/07/2011</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">8</TD><TD> </TD><TD style="TEXT-ALIGN: right">06/02/2011</TD><TD style="TEXT-ALIGN: right">0.516730731</TD><TD> </TD><TD> </TD><TD> </TD><TD>Jul</TD><TD style="TEXT-ALIGN: right">03/07/2011</TD><TD style="TEXT-ALIGN: right">30/07/2011</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">9</TD><TD> </TD><TD style="TEXT-ALIGN: right">13/02/2011</TD><TD style="TEXT-ALIGN: right">0.824421833</TD><TD> </TD><TD> </TD><TD> </TD><TD>Aug</TD><TD style="TEXT-ALIGN: right">31/07/2011</TD><TD style="TEXT-ALIGN: right">27/08/2011</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">10</TD><TD> </TD><TD style="TEXT-ALIGN: right">20/02/2011</TD><TD style="TEXT-ALIGN: right">0.696108022</TD><TD> </TD><TD> </TD><TD> </TD><TD>Sep</TD><TD style="TEXT-ALIGN: right">28/08/2011</TD><TD style="TEXT-ALIGN: right">01/10/2011</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">11</TD><TD>Mar</TD><TD style="TEXT-ALIGN: right">27/02/2011</TD><TD style="TEXT-ALIGN: right">0.319618217</TD><TD> </TD><TD> </TD><TD> </TD><TD>Oct</TD><TD style="TEXT-ALIGN: right">02/10/2011</TD><TD style="TEXT-ALIGN: right">29/10/2011</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">12</TD><TD> </TD><TD style="TEXT-ALIGN: right">06/03/2011</TD><TD style="TEXT-ALIGN: right">0.283810995</TD><TD> </TD><TD> </TD><TD> </TD><TD>Nov</TD><TD style="TEXT-ALIGN: right">30/10/2011</TD><TD style="TEXT-ALIGN: right">26/11/2011</TD></TR><TR style="HEIGHT: 18px"><TD style="TEXT-ALIGN: center; BACKGROUND-COLOR: #cacaca; FONT-SIZE: 8pt">13</TD><TD> </TD><TD style="TEXT-ALIGN: right">13/03/2011</TD><TD style="TEXT-ALIGN: right">0.244958238</TD><TD> </TD><TD> </TD><TD> </TD><TD>Dec</TD><TD style="TEXT-ALIGN: right">27/11/2011</TD><TD style="TEXT-ALIGN: right">31/12/2011</TD></TR></TBODY></TABLE>
<TABLE style="BORDER-BOTTOM-STYLE: groove; BORDER-BOTTOM-COLOR: #00ff00; BORDER-RIGHT-STYLE: groove; BACKGROUND-COLOR: #fffcf9; BORDER-TOP-COLOR: #00ff00; FONT-FAMILY: Arial; BORDER-TOP-STYLE: groove; COLOR: #000000; BORDER-RIGHT-COLOR: #00ff00; FONT-SIZE: 10pt; BORDER-LEFT-STYLE: groove; BORDER-LEFT-COLOR: #00ff00"><TBODY><TR><TD>
Spreadsheet Formulas</TD></TR><TR><TD><TABLE style="FONT-FAMILY: Arial; FONT-SIZE: 9pt" border=1 cellSpacing=0 cellPadding=2><TBODY><TR style="BACKGROUND-COLOR: #cacaca; FONT-SIZE: 10pt"><TD>Cell</TD><TD>Formula</TD></TR><TR><TD>E2</TD><TD>=SUMPRODUCT(--
($B$2:$B$55>=$H2),--
($B$2:$B$55<=$I2),--
($C$2:$C$55<>""))</TD></TR><TR><TD>F2</TD><TD>=SUMPRODUCT(--
($B$2:$B$55>=$H2),--
($B$2:$B$55<=$I2),$C$2:$C$55)</TD></TR><TR><TD>H2</TD><TD>=INDEX($B$2:$B$55,MATCH
(G2,$A$2:$A$55,0))</TD></TR><TR><TD>I2</TD><TD>=H3-1</TD></TR><TR><TD>H13</TD><TD>=INDEX($B$2:$B$55,MATCH
(G13,$A$2:$A$55,0))</TD></TR><TR><TD>I13</TD><TD>=MAX(B2:B55)</TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>
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