pre_text: GasLog Ltd. and its Subsidiaries
  Notes to the consolidated financial statements (Continued)
  For the years ended December 31, 2017, 2018 and 2019
  (All amounts expressed in thousands of U.S. Dollars, except share and per share data) Current Liabilities Ship management creditors’ liability is comprised of cash collected from Egypt LNG Shipping Ltd. to cover the obligations of its vessel under the Group’s management Amounts due to related parties of $200 (December 31, 2018: $169) are expenses paid by a related party on behalf of the Group and payables to other related parties for the office lease and other operating expenses.
table: As of December 31,
table: 2018 2019
table: Ship management creditors 268 328
table: Amounts due to related parties 169 200
question: Analyse this data from a financial earnings document. What was the change in amounts due to related parties from 2018 to 2019?