5 years in high school - which do colleges count?

<p>If you end up spending more than four years in high school because you do a "post grad year" or switch to an IB diploma program late in the game, do colleges count the grades and activities from all five years or just the last four? Due to a mid high school "gap year" for an exchange program and two progressively better school changes, my D has gone from the Class of 2011 to the Class of 2013. How will this affect her college applications?</p>

<p>Coming from a soon to be college freshman (so I have no real experience) I’d imagine that since her extra years were spent well it would be a bonus! I’d also assume they’d count all 5 years.</p>