Sec. 5. As used in this chapter, "total statewide inpatient days" means the sum of:
(1) the inpatient days for all payor sources for all comprehensive care health facilities that filed a Medicaid cost report; plus
(2) the inpatient days for all payor sources for all comprehensive care health facilities that only file a Medicare cost report;
for the cost report year two (2) years prior to the year in which a county comprehensive care bed need is published for a review period.