maturity requirements on long-term debt as of december 31 , 2018 by year are as follows ( in thousands ) : years ending december 31 .

$ 124176: 2020: 159979
2021: 195848
2022: 267587
2023: 3945053
2024 and thereafter: 475000
total: 5167643

credit facility we are party to a credit facility agreement with bank of america , n.a. , as administrative agent , and a syndicate of financial institutions as lenders and other agents ( as amended from time to time , the 201ccredit facility 201d ) . as of december 31 , 2018 , the credit facility provided for secured financing comprised of ( i ) a $ 1.5 billion revolving credit facility ( the 201crevolving credit facility 201d ) ; ( ii ) a $ 1.5 billion term loan ( the 201cterm a loan 201d ) , ( iii ) a $ 1.37 billion term loan ( the 201cterm a-2 loan 201d ) , ( iv ) a $ 1.14 billion term loan facility ( the 201cterm b-2 loan 201d ) and ( v ) a $ 500 million term loan ( the 201cterm b-4 loan 201d ) . substantially all of the assets of our domestic subsidiaries are pledged as collateral under the credit facility . the borrowings outstanding under our credit facility as of december 31 , 2018 reflect amounts borrowed for acquisitions and other activities we completed in 2018 , including a reduction to the interest rate margins applicable to our term a loan , term a-2 loan , term b-2 loan and the revolving credit facility , an extension of the maturity dates of the term a loan , term a-2 loan and the revolving credit facility , and an increase in the total financing capacity under the credit facility to approximately $ 5.5 billion in june 2018 . in october 2018 , we entered into an additional term loan under the credit facility in the amount of $ 500 million ( the 201cterm b-4 loan 201d ) . we used the proceeds from the term b-4 loan to pay down a portion of the balance outstanding under our revolving credit facility . the credit facility provides for an interest rate , at our election , of either libor or a base rate , in each case plus a margin . as of december 31 , 2018 , the interest rates on the term a loan , the term a-2 loan , the term b-2 loan and the term b-4 loan were 4.02% ( 4.02 % ) , 4.01% ( 4.01 % ) , 4.27% ( 4.27 % ) and 4.27% ( 4.27 % ) , respectively , and the interest rate on the revolving credit facility was 3.92% ( 3.92 % ) . in addition , we are required to pay a quarterly commitment fee with respect to the unused portion of the revolving credit facility at an applicable rate per annum ranging from 0.20% ( 0.20 % ) to 0.30% ( 0.30 % ) depending on our leverage ratio . the term a loan and the term a-2 loan mature , and the revolving credit facility expires , on january 20 , 2023 . the term b-2 loan matures on april 22 , 2023 . the term b-4 loan matures on october 18 , 2025 . the term a loan and term a-2 loan principal amounts must each be repaid in quarterly installments in the amount of 0.625% ( 0.625 % ) of principal through june 2019 , increasing to 1.25% ( 1.25 % ) of principal through june 2021 , increasing to 1.875% ( 1.875 % ) of principal through june 2022 and increasing to 2.50% ( 2.50 % ) of principal through december 2022 , with the remaining principal balance due upon maturity in january 2023 . the term b-2 loan principal must be repaid in quarterly installments in the amount of 0.25% ( 0.25 % ) of principal through march 2023 , with the remaining principal balance due upon maturity in april 2023 . the term b-4 loan principal must be repaid in quarterly installments in the amount of 0.25% ( 0.25 % ) of principal through september 2025 , with the remaining principal balance due upon maturity in october 2025 . we may issue standby letters of credit of up to $ 100 million in the aggregate under the revolving credit facility . outstanding letters of credit under the revolving credit facility reduce the amount of borrowings available to us . borrowings available to us under the revolving credit facility are further limited by the covenants described below under 201ccompliance with covenants . 201d the total available commitments under the revolving credit facility at december 31 , 2018 were $ 783.6 million . global payments inc . | 2018 form 10-k annual report 2013 85 .

Questions:
what was the total of annual payments for 2024 and thereafter?
and what was it for 2019?
by how much, then, did it increase over those years?
and as of december 31 of the previous year of this period, what was the amount of the term loan provided ( the 201cterm a loan 201d ), in millions?
and what was the annual interest expense incurred from this loan?

Answers:
475000
124176
350824
1500
60.3