When you log on to Marketplace, you will see all your campaigns on the start page. On the right hand side, under "Actions", you have two statistics options.
Campaign Statistics Page
Download Statistics to .csv File
See your campaign statistics by pressing the stats icon
Campaign statistics can be filtered by date interval and/ or by devices (all, mobile or desktop). The campaign statistics page is an overview of all ads in the campaign.
In here you will find an overview of its Target, Clicks and Impressions delivered, Click Through Rate (CTR), Effective Cost per Mille (eCPM) and the Total amount Spent in the Campaign. Additional graphs with Clicks by day, Impressions by day, Ctr by day and eCPM vs CPC by day can be found further down the page.
Individual ad statistics
One can view individual ad statistics in the same way.
Open campaign statistics by pressing the stats icon . If the campaign contains multiple ads you can filter to see only the stats for a particular ad by choosing to display one of them.
You can also view Campaign and AD statistics within any given campaign.
Download statistics as .csv file
Download campaign or ad statistics to .csv file by pressing the download button
This report presents you with timestamps and what happened on a daily basis with clicks, impressions, ctr and money spent.