Sec. 4. Every probation department shall annually compile, and make available to the judicial conference of Indiana upon request, accurate statistical information pertaining to its operation, including:
(1) presentence and predisposition reports prepared;
(2) investigations and reports regarding cases assigned to that probation department and disposed of prior to trial;
(3) cases disposed of by termination of supervision, including revocation of probation;
(4) that probation department's operational costs, including salaries of probation officers and administrative personnel; and
(5) persons employed.