Cost to educate dumped alien kids is toted up for Maryland

Fox News took some basic facts from a Baltimore Sun news story and plugged in the dollars: 2804 illegal alien kids from Central America, at $13,609 per Maryland student comes out to $38,159,636. But that’s the cost for normal citizen students: the newbies also need Spanish-speaking teachers, special counselors and psychological treatment for trauma incurred on their trip…

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This chart at the linked article made me wonder: why such differences between countries?

Do different types of people come to the USA from these countries, or are they this different in their home countries? No idea.