; recovery of collection shortfalls (A) Offset of overcollections If the sum of the cumulative amount of fees collected under this section for the fiscal years 2018 through 2022 exceeds the cumulative amount appropriated pursuant to paragraph (3) for fiscal years 2018 through 2023, the excess amount shall be credited to the appropriation account of the Food and Drug Administration as provided in paragraph (1), and shall be subtracted from the amount of fees that would otherwise be authorized to be collected under this section pursuant to appropriation Acts for fiscal year 2024. (B) Recovery of collection shortfalls (i) 2020 For fiscal year 2020, the amount of fees otherwise authorized to be collected under this section shall be increased by the amount, if any, by which the amount collected under this section and appropriated for fiscal year 2018 falls below the amount of fees authorized for fiscal year 2018 under paragraph (3). (ii) 2021 For fiscal year 2021, the amount of fees otherwise authorized to be collected under this section shall be increased by the amount, if any, by which the amount collected under this section and appropriated for fiscal year 2019 falls below the amount of fees authorized for fiscal year 2019 under paragraph (3). (iii) 2022 For fiscal year 2022, the amount of fees otherwise authorized to be collected under this section shall be increased by the amount, if any, by which the amount collected under this section and appropriated for fiscal year 2020 falls below the amount of fees authorized for fiscal year 2020 under paragraph (3). (iv) 2023 For fiscal year 2023, the amount of fees otherwise authorized to be collected under this section shall be increased by the amount, if any, by which the amount collected under this section and appropriated for fiscal year 2021 falls below the amount of fees authorized for fiscal year 2021 under paragraph (3). (v) 2024 For fiscal year 2024, the amount of fees otherwise authorized to be collected under this section shall be increased by the amount, if