title: Admob ad page views much higher than impressions on tablets
body: <p>I have recently published an app to the Play Store with Admob ads. I noticed something odd today as my page views reported by AdSense were much higher than my impressions (7400 page views vs 1500 impressions). My match rate is still high (90%+) which suggests to me the ad requests are being fulfilled but the ads are not being displayed to the user. I then checked the platform information on AdSense to find that nearly all page views on 'high-end mobile devices' lead to an impression (1800 page views to 1500 impressions) whereas on 'tablets' I have 5600 page views to 13 impressions. This suggests to me that the ads are being displayed fine on mobile phones but barely at all on tablets. </p>
  
  <p>What could be causing this? Are there any additional steps that must be taken to ensure AdMob ads are displayed on tablets as well?</p>
  
  <p>Note: most of my ads appear as interstitials and some banner ads.</p>