The results of September’s election for the Afghanistan legislature finally have been released. From the CSM:
Early analyses of the final results show that the Hazara community may have snagged a share of the lower house that represents as much as double their actual proportion of the population.
In Ghazni, the last remaining constituency to be counted, preliminary results indicated that all 11 seats went to Hazara candidates, even though the province has a slim majority of Pashtuns with significant Hazara and Tajik minorities. [...]
Wardak province also saw a surge in Hazara representation. Though the region is predominately home to Pashtuns, three of the five seats went to Hazaras.
The story emphasizes the impact of violence on the lack of ethnic proportionality: if turnout by Pashtuns was lower due to their regions being more violent, then other groups would be over-represented.
While violence may well be the main factor, it is worth remembering that the electoral system is single nontransferable vote (SNTV), which is not a proportional system. If Pashtuns had their votes less efficiently distributed across their candidates than did other ethnic groups, for whatever reason, then the result could be disproportional regardless of turnout differentials.