CountOver does not reflect date(X-axis)

Condition:
Cascading filter : Continent → Country → Code
Calculated Field 'TotalNumberOfOneCountry’Code: countOver(Index,[Continent,Country],PRE_FILTER)

Purpose:
1st line shows total number of index regarding selected Code(‘None’ in this case) Per Day.
2nd Line shows total number of index in that country Per Day.

Problem:
TotalNumberOfOneCountry’Code only shows constant total across all days.

Tried to add Date, but Total == number of selected ‘Index’

countOver(Index,[Continent,Country,Date],PRE_FILTER)