Line Chart not plotting for all Dates

Hi,

I have the following measure that calculates an InjuryRate: 

InjuryRate = Calculate(Countrows(IncidentReports);IncidentReports[Incident Classification]="XYZ")*1000000/[TotalManHour]

So, the InjuryRate values is unique for each date, as the TotalManHour value changes every day. When I put the InjuryRate measure on a Card, the value updates every time I change the date slider. So, there are no problems in calculating this measure and showing the most updated value on a card.

Now, I would like to plot the InjuryRate measure againt time on a line chart. However, the InjuryRate does not calculate for each date value. Instead, it only calculates the value for the two dates that have en entry with Incident Classification=‘XYZ’ and draws a straight line between these two points.

How can I make sure that in the line graph, the InjuryRate measure calculates for each date value?

If it helps, have the following tables:

• A 'DateTable' table with a [Date] column.
• An 'IncidentReports' table with a [Date of Incident] column. The [Date of Incident] is linked to the [Date] column of the 'DateTable'.
• A 'Manpower Summary' with a [Date] column that is used to calculate the [TotalManHour] measure. The Manpower Summary[Date] is again linked to the [Date] column of the 'DateTable'.