<p>The most recent [Common</a> Data Set](<a href=“http://www.provost.harvard.edu/institutional_research/common_data_set.php"]Common”>http://www.provost.harvard.edu/institutional_research/common_data_set.php) has (almost) what you want. It’s still a few years behind the present, but here too, I doubt much has changed. The link is to the page that lists all of them, in case it gets updated.</p>
<p>Note that you’ll want to do BETTER than the bottom 25% to maximize your chances. No one knows exact numbers, but we assume the spots for students with the lowest scores are reserved for legacies, URMs, recruited athletes, etc.</p>