The numbers are available through www.data.gc.ca, here's one link (there are many more):
http://www.data.gc.ca/default.asp?lang=En&n=5175A6F0-1&xsl=datacataloguerecord&metaxsl=datacataloguerecord&formid=B6F7C54E-EF4B-4EC1-8DDE-7315E97D18EB
The truth is that Kenny has reduced the backlog, but it has been primarily through invalidating applications (i.e. rejecting pre 2008). Moreover Detroit and Seattle *did* process PR applications, even though it was not many. Kenney is clearly setting up a conservative's ideal immigration system where the operating expenses are less (hence multiple closing of offices) and immigrants are less (hence higher barrier to entry). He is publicizing this as "reducing the backlog" but the primary objective is reducing expenses. I have never heard of any attempt to increase staff to process the backlog quickly; the concern for reducing is expenses is much greater than fairness.
By the way, if you look at the quarterly reports since the transfer of Buffalo files to Ottawa, you will see the progress is dismal. According to the publicly available numbers, the office is not on track in any shape or from to process the current pending applications in the next year. Given the Kenney's philosophy, the office is most likely severely understaffed. If they do indeed manage to speed up the process, it will probably be because they are cutting corners in the background checks or increasing the rejecting rate.
Yes, I am pessimistic. Not that angry, it is what it is. Although seeing Kenney speak does irk me a little. What a condescending person he is.