Here is how the score is made.
http://en.wikipedia.org/wiki/Education_IndexThe Education Index is measured by the adult literacy rate (with two-thirds weighting) and the combined primary, secondary, and tertiary gross enrollment ratio (with one-third weighting). The adult literacy rate gives an indication of the ability to read and write, while the GER gives an indication of the level of education from kindergarten to postgraduate education.
I note that the workers paradise of Cuba is ranked right up there with the Anzac nations and Finland. While Japan is ranked far below the US. This makes me doubt the rankings listed by the UN.