I just got my score as I was off-campus the past 5 weeks and at my program we have to get our scores in person. I didn't get to see a list of the percentiles and how they correspond to the scaled score by year of residency this year but my PD told me my percentile.
My scaled scores and the percentiles they corresponded to, which seemed to vary quite a bit from year to year:
2013: PGY-1: 20-something, 50-ish percentile? This year doesn't matter score-wise anyway.
2014: PGY-2: 33, 78%ile (I've heard this is the most important year as far as scores for fellowships go)
BASIC exam: Pass
2015: PGY-3: 34, 40%ile (the 50%ile scaled score for CA-2s went up this year from 33 to 35, possibly because of people studying for the basic exam?)
2016: PGY-4: 41, 88%ile
My PD said a passing score corresponds with a scaled score of 35 this year, which I guess also changes from year to year.