title: concatenate lists as rows to make dataframe pandas
body: <p>I have few lists which have a year at their first index, followed by a name and number e.g </p>
  
  <pre><code>list 1 ['2017', 'Paul 2', 'Miley 4',..]
  
  list 2 ['2016', 'Sarah 4', 'Stephanie 6'...]
  </code></pre>
  
  <p>I wish to make a dataframe (of all these lists concatenated) that has 3 columns of name, number and year</p>
  
  <pre><code> name   | num   | year
   Paul      2      2017
   Miley     4      2017
   Sarah     4      2016
   Stephanie 6      2016
  </code></pre>