Get country/site detail of each campaign through api

Hi,

As an advertiser preparing for a test with Taboola, we try transfer the performance data to our BI with Taboola api provided. However, it seems that we can only see the data by country or by campaign in total, rather than the detailed data within each campaign by site/country. For example, if we are targeting more than one countries in one campaign, we would like to be able to analyze the performance of each country separately.
Is there any option available for that?

Looking forward to your reply soon. Thanks!