<TABLE style="WIDTH: 48pt; BORDER-COLLAPSE: collapse" cellSpacing=0 cellPadding=0 width=64 border=0><COLGROUP><COL style="WIDTH: 48pt" width=64><TBODY><TR style="HEIGHT: 15pt" height=20><TD class=xl63 style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; WIDTH: 48pt; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" width=64 height=20>=INDEX(2009_10_Daily Tracker XOM.xls'!Data_1570,'Service Level Calculator'!$D6,'Service Level Calculator'!E$5)</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" height=20>where $D6 is the # that represents 1 less than the row of data I want to reference</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" height=20>and E$5 is the column of data I want to reference</TD></TR><TR style="HEIGHT: 15pt" height=20><TD style="BORDER-RIGHT: #ece9d8; BORDER-TOP: #ece9d8; BORDER-LEFT: #ece9d8; BORDER-BOTTOM: #ece9d8; HEIGHT: 15pt; BACKGROUND-COLOR: transparent" height=20>question is, why does the row reference have to, for instance, 75 to get it to pull the data in 76?</TD></TR></TBODY></TABLE>