Median family income is tracked Statscan but it only goes back to 2000.  Over that period it's gone from $48,600 to just under $70,000 per year, or an increase of 44%.  Over the same period Bank of Canada reports an inflation increase of 38.5% so income is rising faster than CPI over that period.  I suppose one could argue that taxes have taken more than the differential, but I don't have a handle on that one.  

I'm also 6'4" and have no trouble finding Canadian made clothes.  (I bet your body isn't the same shape it was back in 1970!)  Tilley is my favoured source, although it's a bit limited, but there are many others.  Here's a list if you're serious.  https://www.reddit.com/r/canada/comments/4bkiwa/madeincanada_clothing_a_list/