I tried to get processing times data from their stats department, but they refused with "the data is not readily available, so will not be provided".you could've just said that IRCC believes in obfuscating data.
Here is the discussion https://www.canadavisa.com/canada-immigration-discussion-board/threads/has-anybody-tried-to-generate-processing-times-histogram.800229/
I was thinking of trying to get something through ATIP, but sounds like maybe ATI is a better means for this. I am busy with other stuff at the moment, but I might pick it up again in the next few months.
Lately I was getting an impression that things are improving somewhat, at least for new applicants. Hopefully the backlog will also get some love eventually. Though somebody DM-ed me recently about their 32 months delay, and that was making me very angry.