Pivot Table and Count Number

Hi,

I have a pivot table with a bunch of subject lines used for an email campaign. I also have values for the average open rate of each subject line.

What I need is to see how many times I've used a specific subject line.

So if you take a look at the excel sheet that I've attached, I want to be able to see how many times I've used a specific subject line.

Any ideas on where I can start.

Thanks for your help,