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) 22. Share-Based Compensation (Continued) Movement in RCUs and PCUs The summary of RCUs and PCUs is presented below: The total expense recognized in respect of share-based compensation for the year ended December 31, 2019 was $5,107 (December 31, 2018: $5,216 and December 31, 2017: $4,565). The total accrued cash distribution as of December 31, 2019 is $1,176 (December 31, 2018: $1,265).
table: Number of awards Weighted average contractual life Aggregate fair value
table: RCUs
table: Outstanding as of January 1, 2018 67,475 1.38 1,429
table: Granted during the year 24,608 — 576
table: Vested during the year (16,999) — (410)
table: Outstanding as of December 31, 2018 75,084 1.25 1,595
table: Granted during the year 26,308 — 605
table: Vested during the year (24,925) — (410)
table: Outstanding as of December 31, 2019 76,467 1.26 1,790
table: PCUs
table: Outstanding as of January 1, 2018 67,475 1.38 1,429
table: Granted during the year 24,608 — 576
table: Vested during the year (16,999) — (410)
table: Outstanding as of December 31, 2018 75,084 1.25 1,595
table: Granted during the year 26,308 — 605
table: Vested during the year (24,925) — (410)
table: Outstanding as of December 31, 2019 76,467 1.26 1,790
question: Analyse this data from a financial earnings document. What was the change in total expense recognized from 2017 to 2018?