title: How to show the count values on the top of a bar in a countplot?
body: <p>I have plotted a countplot for the umpires who have umpired the  maximum number of matches in a cricket tournament.
  The code used is:</p>
  
  <pre><code>  ax=matches['umpires'].value_counts().head(10).plot.bar(width=.8) 
  </code></pre>
  
  <p>This plots the bar properly but the exact value of the count is not displayed on the top of each bar.</p>
  
  <p>How do I show the exact numbers on each bar?</p>