Is the demand for programmers growing and will it grow?

Code.org is a non-profit organization that aims to popularize programming under the motto: “Anybody can learn”. British scientists conducted an interesting study: it turns out that in the next 7 years the difference between the number of vacancies and students will increase many times:



Guess what's wrong with this picture?
Source: www.code.org/stats
(As I understand it, all numbers are for the United States.)