The Timestatistik (Time statistics) tab shows registered working time: how much is logged, ordered and invoiced — split by employee, customer and task.
Registered hours and how much of it is invoiced.
A field selector to split by employee, hour product, customer or order type.
Use the field selector to change the split.
Use the Hour product selector to see only hour products.
Switch to Time statistics details for the individual entry.
Hour product = a product used to register working hours. Invoiced = the part of the work that has been put on an invoice.