For reasons pointed out by another reply to your comment, it's difficult to quantify. Anecdotally, I live in newer construction in a suburb of Seattle. At first

For reasons pointed out by another reply to your comment, it's difficult to quantify. Anecdotally, I live in newer construction in a suburb of Seattle. At first the neighborhood was populated by local people who live and work here. As the original buyers have been moving out of the neighborhood over the past 5 years, the buyers of literally all been foreign Chinese. All of the houses surrounding mine are now occupied maybe 50% of the time, and I see luxury cars with Chinese license plates parked in front of these houses all the time.