Diogena on "[Plugin: Contact Form 7] Counting Radio Buttons"

I have a form with 10 radio button, where the user can choose between a) and b). How is it possible, after submitting the form, indicate how often the user has selected b)? For example: Your Result = 5 x b).

Maybe someone can help me?
Thanks in advance

http://wordpress.org/extend/plugins/contact-form-7/