Even if Estonia does have stated electricity distribution loss, it still looks so way out of place in this group of countries by so many criteria. I wonder why not pick Egypt or Libya given that they have the same distribution loss.

Edit: this could be the reason - when you click on "Map" above the graph, for some reason Estonia is one of the blue countries shown on the map. Argentina, Brazil, and Kenya are there too (but not others).

'kaod' is losses, this table shows losses from bruto production.

Either someone has been sending wrong data to the world bank or there is some issue with interpreting them before importing to world bank.