Between January 2011 and the past February there have been almost 50,000 people who have applied for asylum in Greece.
That's only the number of people who have applied for asylum status — tens of thousands more have arrived in Greece during the refugee and migrant crisis gripping Europe. Many of the Greece-bound migrants aimed to head farther west.
Here are some charts that offer more context to the wave of migrants trying to reach Europe.
From PRI's The World ©2016 PRI