pre_text: CTS CORPORATION AND SUBSIDIARIES Consolidated Statements of Comprehensive Earnings (in thousands) The accompanying notes are an integral part of the consolidated financial statements.
table: Years Ended December 31,
table: 2019 2018 2017
table: Net earnings $36,146 $46,532 $14,448
table: Other comprehensive earnings (loss):
table: Changes in fair market value of derivatives, net of tax (509) 795 110
table: Changes in unrealized pension cost, net of tax 6,439 (1,830) 13,687
table: Cumulative translation adjustment, net of tax 83 (311) 437
table: Other comprehensive earnings (loss) $6,013 $(1,346) $14,234
table: Comprehensive earnings $42,159 $45,186 $28,682
question: Analyse this data from a financial earnings document. What was the change in the Other comprehensive earnings  between 2017 and 2019?