title: Calculating Percentile by Date
body: <p>I have the following datasets:</p>
  
  <pre><code>Date            Primary_Occupation         Jobs
  1/1/2005            Math                    23
  1/1/2005            Science                 7
  1/1/2005            Food                    10
  1/1/2006            Math                    10
  1/1/2006            Sales                   64
  1/1/2006            Transportation          21
  
  All the way until 11/1/2015
  </code></pre>
  
  <p>I am trying to tabulate the percentage of jobs by Primary_Occupation and overtime 
  I saw that proc univariate has a bunch of percentile options, but neither of them seem to be the solution for what I am looking to do. </p>