title: Kibana cannot draw the Histogram of the float values
body: <p>Kibana cannot correctly draw a the Histogram of the float values.
  The result of query to elasticsearch contains the field "Value" and the value is "88.23692".  </p>
  
  <p>I select "mean" in "Chart value" and put "Value" in "Value Field" on Panel Settings of the histogram. </p>
  
  <p>However it looks like the histogram can't display the values correctly. Y-axis contains great numbers: sextillions.</p>
  
  <p>Could anybody please tell me whether Kibana can deal with float numbers and if yes what is correct numbers format?</p>