<p>I'm guessing they want to keep the low amount of people in their community, so annually they accept a certain amount in freshman and sophomore yr. to keep that tight-knit community going. Then a few spots for juniors (mostly for athletes). </p>
<p>SPS only takes around 6-9 juniors every year. Seems like at least 2-3 of those are hockey players every year. It is very difficult to get into SPS as a junior. </p>
<p>In contrast, they take around 95-100 freshman and 40-50 new sophomores every year.</p>