ABSTRACT
Toplaneducationalpolicies,itisimportanttoknowhowtheeducationalsystem isbehaving.Goodandcorrectstatisticsareessentialtomonitoranddiagnosethe problemsoftheeducationalsystem,allowingtheplannerstodecidewhichkind ofactionsshouldbeimplementedtoimprovethesystemandalsotofindoutif theyarebeingeffective.
