title: How can I have one index for two rows in dataframe?
body: <p>I want to have my Years as indices in my dataframe. But each year refers to two rows. How can I do that?</p>
  
  <p>This is what I have:</p>
  
  <pre><code>       TYPE Jan Feb 
  2019 -  A    1   2
  2019 -  B    4  4.3
  
  </code></pre>
  
  <p>This is what I want:</p>
  
  <pre><code>
         TYPE Jan Feb 
  2019 -  A    1   2
          B    4  4.3
  </code></pre>