title: Bar Plot with recent dates left where date is datetime index
body: <p>I tried to sort the dataframe by datetime index and then plot the graph but no change still it was showing where latest dates like 2017, 2018 were in right and 2008, 2009 were left.</p>
  
  <p><a href="https://i.stack.imgur.com/BP8yy.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/BP8yy.png" alt="enter image description here"></a></p>
  
  <p>I wanted the latest year to come left and old to the right.
  This was the dataframe earlier.</p>
  
  <pre><code>            Title  
  Date                      
  2001-01-01      0       
  2002-01-01      9        
  2003-01-01     11       
  2004-01-01     17       
  2005-01-01     23       
  2006-01-01     25       
  2007-01-01     51       
  2008-01-01     55       
  2009-01-01    120      
  2010-01-01    101     
  2011-01-01     95       
  2012-01-01    118      
  2013-01-01     75       
  2014-01-01     75       
  2015-01-01     3      
  2016-01-01     35       
  2017-01-01     75       
  2018-01-01     55
  </code></pre>
  
  <p>Ignore the values.
  Then I sort the above dataframe by index, and then plot but still no change in plots</p>
  
  <pre><code>df.sort_index(ascending=False, inplace=True)
  </code></pre>