How many people in the use of yahoo in the United States

I feel less people use yahoo in the United States really good, why even ranked up feeling click on my website are also very few, I tried to do with Microsoft's bing search page like yahoo.Really only Google web traffic will increase?
Below is my web site:
Ferro Silicon
http://ift.tt/1UXtMmJ

from Yahoo http://ift.tt/1TdY95V
via IFTTT
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