Crystal Reports how to take the sum of the count of a particular c

Message

     I am trying to filter the data on the basis of condition
it is like
select count(timesheet_ref),timesheet_date
from export_data
where export_status = 1
group by timesheet_date

eg
report columns
timesheet_ref     timesheet_date  ready_to_sent(having 2 rows)  Already_sent(another table data having 10 rows)
123       1/12/2013  1    4
124      2/12/2013  1    6
------------------------------------------------------------------------------------------------------------
Total                                   10(it should give2)                 10
--------------------------------------------------------------------------------------
to make it we need to use this formula

for total should be = sum(count([export_data.timesheet_ref]))

but above formula is not working.

Please help