Still lower than the U.S. I went to a couple of cities in Canada in the past year and there's construction everywhere, from skyscrapers to roads. My corner of the Bay Area has a couple of 5-story apartment complexes going up.
NYC has had skyscrapers going up left and right the past decade: Central Park, 111 West 57, One Vanderbilt, 432 Park, 30 Hudson, 3 World Trade, 53W53, 35 Hudson, One57, 1 Manhattan, 220 Central Park South, 15 Hudson, 125 Greewich, 425 Park, etc.
All of those are taller or nearly as tall as the tallest buildings in all of Canada. In one US city. What does that prove?
https://en.wikipedia.org/wiki/List_of_tallest_buildings_in_C...
https://en.wikipedia.org/wiki/List_of_tallest_buildings_in_N...
I don't believe that. If you look at Manhattan alone, you'll see something very different. Unlike many other cities (particularly in the US, but also other places), NYC is basically a collection of cities. Manhattan is dense, but Staten Island is definitely not, so that drags down the average density. It's not fair to compare that with many other places.