Creating a Double Line Graph

Hello,

I'm trying to create a graph from the information seen in the table below. I need to plot on the X- Axis, the T0,T1,T2 values. There will be two data sets for the line graph, Subject A and Subject B, the value from which will be plotted on the Y-Axis. I've spent about an hour now, trying to order the values to create the graph I need.

Another way of saying this, is that I'm plotting the differences in Subject A versus Subject B over a period of Time (T0, T1, T2).

It should look something like this:

Help Please!

-KB