Max Orders Placed By Hour

I have a pretty straight forward fact table that contains order information like this:



DateTimeStamp Price OrderID



I have a measure that does a simple row count for orders placed. How can I get the Max Orders Placed grouped by Hour? Something similar to this:



0:00 15

1:00 25

2:00 50

.....

23:00 75



I tried to do a max function like max([time].[hour], [measures].[Order Row Count]) but ended up with only one value. I know I'm doing it wrong.



I appreciate any help on this.