Mine was 17% in 1989 when I sold that place for $185,000 instead of $230,000. I'm sure new mortgages could have been at a premium and higher as you say.
I bought a little place on a triplex block in 1990 for $90,000 and had $30,000 left over in the bank. That was a breath of fresh air after getting caught playing the booming market and being cut down to size.
