Multiple data points issue

[kheri]

Hi, I'm hoping someone can help with this issue, its driving me crazy!!

I have 3 data points that I want to display on a graph that is pulling from a report. I have first(datapoint), max(datapoint) and i want the second datapoint that follows the first ..... so I want:
datapoint1
datapoint2 (which is 48-72 hours after the first one)
datapoint100 (last one available)

I have two variables for determining the 48 hour and 72 hour.
=RelativeDate([InitialDate]; 1) <----InitialDate is min(date&time)
=RelativeDate([data].[Date & Time]; 3)

Then i have it determining if it qualifies as "Initial" (min), "48 Hour" or "Recent" (max).
=If([data].[Date & Time] = [InitialDate]) Then "Initial" ElseIf [data].[Date & Time] = [Recent] Then "Recent" ElseIf [data].[Date & Time] Between ([48Hr] ; [72Hr]) Then "48 Hour"


The problem that I am having is that there can be multiple datapoints between 48 and 72 hours and I only want the first one. No matter how many variables I have tried it just doesnt want to show me only the second one. I'm sure there is a simple way to do this but it just hasnt come to me! Any help is greatly appreciated!!