; and (ii) the sum, for each month during such quarter, of the number of individuals enrolled under such program in such State. (B) Annual increase For purposes of subparagraph (A), in the case of a State with respect to which such subparagraph applies with respect to a period of consecutive quarters occurring during more than one calendar year, for such consecutive quarters occurring during the second of such calendar years or a subsequent calendar year, the average monthly per capita costs for each such quarter for such State determined under subparagraph (A)(i), or this subparagraph, shall be annually increased by the Secretary by the percentage increase in Medicaid spending under this title during the preceding year (as determined based on the most recent National Health Expenditure data with respect to such year). (2) Form and manner of payment Payment under paragraph (1) shall be made in a form and manner specified by the Secretary. (3) Compliance If a State fails to pay to the Secretary an amount required under paragraph (1), interest shall accrue on such amount at the rate provided under section 1903(d)(5). The amount so owed and applicable interest shall be immediately offset against amounts otherwise payable to the State under section 1903(a), in accordance with the Federal Claims Collection Act of 1996 and applicable regulations. (4) Data match The Secretary shall perform such periodic data matches as may be necessary to identify and compute the number of individuals enrolled under the Federal Medicaid program under section 1948 in a coverage gap State (as referenced in subsection (a) of such section) for purposes of computing the amount under paragraph (1). (5) Notice The Secretary shall notify each State described in paragraph (1) not later than a date specified by the Secretary that is before the beginning of each quarter (beginning with 2027) of the amount computed under paragraph (1) for the State for that year. (j) Appropriations There is appropriated, out of any funds in the Treasury not