nothing very strange here, with 200 views it is unlikely you will get any clicks or earnings at all. you need to increase the number of views first.
adsense pays you both for clicks and impressions as they have both click-based and impression-based advertising. that is why even without any clicks you will be earning money. even though very little.
Like others have said, most likely a CPM ad, which means you get paid on impression - usually not very much. But hopefully more for you and me in the future.