The illustrator’s source says “4,380,000 (Dekel 2014). Spoken by all Israelis as L1 or L2. Some who use it as L1 now in Israel learned it as L2 originally. Total users in all countries: 5,239,200.”
A language needs 50 million speakers to get on to the chart.
Incidentally, this graphic was first published in 2015.
