Jan 2017
Trump becomes US president
3 million
Feb 2020
Covid-19.
US bans entry
of foreign
nationals
from China
2
1
0
2000
2005
2010
2015
2020
Jan 2017
Trump becomes US president
3 million
Feb 2020
Covid-19.
US bans entry
of foreign
nationals
from China
2
1
0
2000
2005
2010
2015
2020