<p>@Benley, I went to individual school websites, added up available numbers, and divided them by the size of graduating class and the number of years. They typically cover 4-5 years. </p>
<p>Why, anything unusual?</p>
<p>@Benley, I went to individual school websites, added up available numbers, and divided them by the size of graduating class and the number of years. They typically cover 4-5 years. </p>
<p>Why, anything unusual?</p>