The number of displaced persons globally has also increased, quite substantially in the same time period (I've tried to find records that go back further but wa

The number of displaced persons globally has also increased, quite substantially in the same time period (I've tried to find records that go back further but was unsuccessful): https://www.bbc.com/news/world-57514692 https://www.bbc.com/news/world-57514692 https://www.pewresearch.org/fact-tank/2016/08/03/nearly-1-in-100-worldwide-are-now-displaced-from-their-homes/ https://www.pewresearch.org/fact-tank/2016/08/03/nearly-1-in... I'm sure I could find other things that have changed since then but in this case it's reasonable to suggest these are globally related trends.