<p>Your question concerns looking for existing datasets rather than generating data of your own, but please note that</p>

<blockquote>
  <p>Questions about obtaining particular datasets are off-topic (they are too specialized) </p>
</blockquote>

<p>(at <a href="https://stats.stackexchange.com/help/on-topic">https://stats.stackexchange.com/help/on-topic</a>).</p>

<p>The Beta <a href="https://opendata.stackexchange.com/">Open Data site</a> most likely would be interested in fielding such questions.</p>
