There are two reports you can request:
1) Traveller Passage Report, which shows your entries by name. What is given is your name and the place and time you entered Canada.
2) Highway Passage Report, which shows your entries by licence plate number.
If you want #2, you need to include your licence plate number and proof of your connection to that plate (copy of your car registration).
In our case, there were 92 total entries. 78 appeared on #1, 12 of the 14 missing entries appeared on #2, and two entries didn't appear anywhere.