Actually, I asked the officer giving this notice- if u need canadian border records. They said no - they already have an access to those records.
He specially advised me not to give canadian records.
I have many day trips to USA, 1 day - almost every week.
Also, many stamps from USA, almost one every 6 months with a new I94 since 2006.
Yes, I have to contact US to find out the time for FOIA.
Plus I have nexus card and I94 records do not indicate many entries/exits done by nexus
They di not ask me to match, they just need USA entry exit records.