The statistic tab on your admin panel, has been designed to provide you with detailed information regarding the performance of each website and each ad-zone on your site(s)
You can see a breakdown of their performance based on a number of filters e.g. Countries/Device/Categories etc.
You may also find using Sub ID's beneficial to better segregate your traffic stats.
To keep this data accurate we recommend you keep the names you use for your ad zones unique and use only the ad code we provide without modification, on your site(s).
For additional assistance, please contact our Client Care team selecting "Optimisation advice" here.