If official election results processed by an electronic tabulation system, at which level results are entered into an electronic tabulation system?

European Union EOM Report for the 2010 elections

http://www.eueom.eu/files/pressreleases/english/final-report-eueom-ethiopia-08112010_en.pdf

At the polling station level, the votes were countedmanually, and results recorded in results forms prepared by the NEBE for thisparticular purpose. In order to enable early release ofprovisional results, the NEBE established a parallel reporting system enablingthe aggregation of polling station results at national level. The Process wasextremely swift as it aimed only to add up all the votes. Polling station results and constituencyresults forms were collected, checked and entered into a computerized databaseat the NEBE headquarters.