Europe's Refugee Crisis by the Numbers

This is Europe's biggest refugee crisis since World War II.

Here are some of the staggering numbers that describe the crisis:

Registered refugees to other countries after Syrian conflict: More than 4 million

Mediterranean Sea crossings by refugees and migrants so far this year:300,000

Mediterranean Sea crossings by refugees and migrants for all of 2014: 219,000

Cap of refugees United States to accept in fiscal 2015: 70,000, unchanged from the previous year

Expected asylum seekers in Germany this year: 800,000