"Last page view in the date range" is a big amount in Time spent on Page-Report from Datawarehouse

Hi,

i requested a datawarehouse report with the breakdowns "Time spent on Page" and "Pages" and the metric "Page Views".

As a result i get a report in the way i expect, but there is an additional Group for the dimension "time spent on page", wich is called "Group K: Last page view in date range".

Can someone explain me this "last page view in date range" to me please, i don´t find an explanation in the help-space.

Kind regards,

Ilse