A timely piece from Der Spiegel notes:
“Take a tape
measure. Unroll the tape to about two meters (six feet) and place one end against
a wall. The distance between you and the wall corresponds to the world
population of about 7.3 billion people. The number of people worldwide who left
their native countries in the last five years -- in other words, migrated --
takes up about one centimeter (three-eighths of an inch) of the tape measure.
That number amounted to 36.5 million, or 0.5 percent of the world's population.
All others, or 99.5 percent of the global population, are non-migrants, or
people who were living in the same country in 2015 as in 2010. They represent
the other 199 centimeters on the tape measure.”