Other Subsidiary Debt— The Company’s other subsidiary debt includes (i) a credit facility entered into by one of the Company’s South African subsidiaries in December 2015, as amended (the “South African Credit Facility”), (ii) a long-term credit facility entered into by one of the Company’s Colombian subsidiaries in October 2014 (the “Colombian Credit Facility”), (iii) a credit facility entered into by one of the Company’s Brazilian subsidiaries in December 2014 (the “Brazil Credit Facility”) with Banco Nacional de Desenvolvimento Econômico e Social, (iv) a note entered into by one of the Company’s subsidiaries in October 2018 in connection with the acquisition of sites in Kenya (the “Kenya Debt”), (v) U.S. subsidiary debt related to a seller-financed acquisition (the “U.S. Subsidiary Debt”) and (vi) debt entered into by certain Eaton Towers subsidiaries acquired in connection with the Eaton Towers Acquisition (the “Eaton Towers Debt”).
Amounts outstanding and key terms of other subsidiary debt consisted of the following as of December 31, (in millions, except percentages):
(1) Includes applicable deferred financing costs.
(2) Denominated in ZAR, with an original principal amount of 830.0 million ZAR. On December 23, 2016, the borrower borrowed an additional 500.0 million ZAR. Debt accrues interest at a variable rate. The borrower no longer maintains the ability to draw on the South African Credit Facility.
(3) Denominated in COP, with an original principal amount of 200.0 billion COP. Debt accrues interest at a variable rate. The loan agreement for the Colombian Credit Facility requires that the borrower manage exposure to variability in interest rates on certain of the amounts outstanding under the Colombian Credit Facility. The borrower no longer maintains the ability to draw on the Colombian Credit Facility.
(4) Denominated in BRL, with an original principal amount of 271.0 million BRL. Debt accrues interest at a variable rate. The borrower no longer maintains the ability to draw on the Brazil Credit Facility.
(5) Denominated in USD, with an original principal amount of $51.8 million. The loan agreement for the Kenya Debt requires that the debt be paid either (i) in future installments subject to the satisfaction of specified conditions or (ii) three years from the note origination date.
(6) Related to a seller-financed acquisition. Denominated in USD with an original principal amount of $2.5 million.
(7) Related to the Eaton Towers Acquisition. Denominated in multiple currencies, including USD, EUR, KES and XOF. Amounts shown represent principal outstanding as of December 31, 2019.
(8) Subsequent to December 31, 2019, the Company repaid all of the outstanding USD denominated and KES denominated debt.
Pursuant to the agreements governing the South African Credit Facility and the Colombian Credit Facility, payments of principal and interest are generally payable quarterly in arrears. Outstanding principal and accrued but unpaid interest will be due and payable in full at maturity. The South African Credit Facility may be prepaid in whole or in part without prepayment consideration. The Colombian Credit Facility may be prepaid in whole or in part at any time, subject to certain limitations and prepayment consideration.
The South African Credit Facility, the Colombian Credit Facility and the Brazil Credit Facility are secured by, among other things, liens on towers owned by the applicable borrower.
Each of the agreements governing the other subsidiary debt contains contractual covenants and other restrictions. Failure to comply with certain of the financial and operating covenants could constitute a default under the applicable debt agreement, which could result in, among other things, the amounts outstanding, including all accrued interest and unpaid fees, becoming immediately due and payable.

Carrying Value (Denominated Currency) (1)
Carrying Value (USD) (1)
Interest Rate
Maturity Date
2019
2018
2019
2018
South African Credit Facility (2)
288.7
577.4
$20.6
$40.2
8.75%
December 17, 2020
Colombian Credit Facility (3)
79,647.3
109,193.8
$24.3
$33.6
8.13%
April 24, 2021
Brazil Credit Facility (4)
65.4
94.7
$16.2
$24.4
Various
January 15, 2022
Kenya Debt (5)
29.6
51.8
$29.6
$51.8
8.00%
October 1, 2021
U.S. Subsidiary Debt (6)
1.9
2.5
$1.9
$2.5
—%
January 1, 2022
Eaton Towers Debt (7):
USD Denominated (8)
238.8
—
$238.8
$—
Various
Various
EUR Denominated
26.2
—
$29.5
$—
Various
Various
XOF Denominated
16,836.8
—
$28.8
$—
Various
Various
KES Denominated (8)
3,319.2
—
$ 32.7
$—
Various
Various


Question: Analyse this data from a financial earnings document. What was the change in the carrying value (USD) of South African Credit Facility between 2019 and 2018?
Choices:
60.8
-19.6
20.5
-17.2
19.6
Correct choice index: 1