Apple just issued a warning on iPhone sales, but Google Trends saw problems years ago (AAPL)

Apple just slashed its quarterly revenue guidance amid slowing iPhone sales in China and a variety of other issues.
Analysts had recently warned on an impending slowdown in the iPhone market, due in part to slowing economic growth in China.
Google Trends data shows interest began waning years ago in both China and in the US.
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Apple, in a rare move on Wednesday, issued a warning on its quarterly revenue guidance amid slowing iPhone sales in China and a litany of other issue