Summer decrease in dowloads?

Since the beginning of June I experience a constant decrease in downloads (now it’s -30% from the May values, both in downloads and revenue). That said, the position in GPlay charts remains almost constant (I use appannie for tracking). Does anyone here has the same situation? Is it just me or a global summer decrease?

I suppose it’s the summer. Since I have drops in all stores, not only on GPlay.

Can’t say I’ve seen any measurable decreases. Downloads have fluctuated a bit, but right now they are the same as they have been for many months.