The document discusses mobile app revenues which increased 20.3% in 2016 to reach $37.7 billion according to research firm Gartner. A chart is shown with y-axis labels of 100, 250, 500, 1000 and x-axis labels of Sep 16, Sep 23, Sep 30, Oct 7, Sep 14, Oct 21.

4. 20.3 percent in 2016, to $37.7 billion [Gartner]

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Sep 16 Sep 23 Sep 30 Oct 7 Sep 14 Oct 21