"Adjusted total proportional responsibility" means the percentage calculated for each participating manufacturer for a program year under subsection (f) of this Section.
"Market share" means the percentage that results from dividing:
"Participating manufacturer" means a manufacturer that a manufacturer clearinghouse has listed, pursuant to subsection (c) of this Section, as a participant in the manufacturer clearinghouse for a program year.
"Population adjustment factor" means the percentage that results when (i) the population of Illinois, as reported in the most recent federal decennial census, is divided by (ii) the population of the United States, as reported in the most recent federal decennial census.
"Return share" means the percentage, by weight, of each CED category that is returned to the program collection sites and one-day collection events operated by or on behalf of either a manufacturer clearinghouse or one or more of its participating manufacturers during the calendar year 2 years before the applicable program year, as reported to the Agency under Section 1-10 of this Act; except that, for program year 2019 and program year 2020, "return share" means the percentage, by weight, of each CED category that is estimated by the manufacturer clearinghouse to be returned to those sites and events during the applicable program year, as reported to the Agency under subsection (b) of this Section.
"Unadjusted total proportional responsibility" means the percentage calculated for each participating manufacturer under subsection (e) of this Section.
415 ILCS 151/1-84.5