Time Average in ALV Grid

Hello everyone,

I'm trying to make the time average on an ALV Grid.

I'm receiving the following result:

col 1 - 04:00:00, col2 - 05:00:00... The correct value of average should be 04:30:00, but I'm receiving 04:50:00

When I fill the parameter inttype of the fcat with 'T', nothing is displayed on the total line...

I'm filling DO_SUM with 'C'.

I'd be glad if someone could help me...

Tks in advance.

Flavio.