Interesting to compare that to the longer-term data that's available: https://www150.statcan.gc.ca/n1/daily-quotidien/240725/cg-b002-eng.htm
Apparently the numbers don't match because they expanded the definition of "violent crime" — so I guess whatever new offenses were added to it must account for most of whatever that huge decline circa 2014 was about.
Saying we care about climate change, attending conferences, giving billions of dollars to oil companies for carbon capture, bribing people to buy electric cars, promoting natural gas, studying high-speed rail for twenty years, adding and then removing a small tax on carbon — those poor politicians tried everything they could think of.