vladimir:

The total estimated dead in Kosovo is around 12 000

That is the "largest estimate you could find" that I was referring to. For instance, the Wikipedia article on theKosovo War has the following summary in their infobox:

KLA: 5,000+ killed [3] NATO: 2 non-combat deaths[4]	1200 killed [5][6]
Around 100 Albanian civilians killed by NATO forces [7] NATO bombings: Human Rights Watch was only able to verify 500 civilian deaths throughout Yugoslavia, [8][9] with other sources stating from 1,200 to 5,700 [8]

If you added the estimate of 8,000 to the number of Serb civilian casualties you'd get "Human Rights Watch was only able to verify 500 civilian deaths throughout Yugoslavia,  with other sources stating from 1,200 to 5,700 or even 8,000". If you replace 8,000 with 5,700 the data point doesn't look like an obvious outlier any more. Like I waid above not all children can be above average or some data point has to have the largest deviation.

Most economists teach a theoretical framework that has been shown to be fundamentally useless. -- James K. Galbraith