If you want to see the stats of a particular email, a third tab Click map will appear.
In this tab you can see the email which been sent with bubbles on the links where receivers have clicked.
The percentage in the bubble is the percentage compare to the number of click of this mail.
For exemple if you have 100 click in your mail and a link have 50 of them, is percentage will be 50%.
If you want to see the actual click of a link, you can hover it: