Thank you for the insight. So for the 97,98,99 sets that I have that are marked uncircualted would those classify as such or would they be considered PL's?

Hello all, I am just reaching out to see if anyone can tell me why SP coins are worth less than PL and uncirculated in most cases? My granny since I was born in 1984 bought my sister and I mint Canadian coin sets every year until 1999. First question, from 1984 till 1991 the packaging does not sugge...