we are currently on 7.2.6 but can retrieve this data with the following script using sql 2005 as our platform but similar can be used no matter what reporting tool you might have
* from tps_user
tps_user_type_guid = (select tps_guid from tps_user_type where tps_name = 'EndUser')
tps_deleted = 0
note that the * will retun all records and you will need to be specific about the field that you use that contains your End users names.
This should be able to be done using the query tool in product rather than SQL. Just remember to tick the show delete flag when building the query.