My graph looks like this:

\1

Basically, I want to get rid of the center labels for the red and blue lines (series). This is a dynamic graph and the value will vary by user input. Thus, I can't simply delete these labels and fix the problem. I need to set-up excel so that only the first and last values of the two series have labels. The end result would look like:

\1

Is this possible? A VBA solution would be great. Thank you.