pre_text: ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS (United States Dollars in thousands, except per share data and unless otherwise indicated) Cash flows We prepare our Consolidated Statements of Cash Flows using the indirect method, under which we reconcile net income to cash flows provided by operating activities by adjusting net income for those items that impact net income, but may not result in actual cash receipts or payments during the period. The following table provides a summary of our operating, investing and financing cash flows for the periods indicated.
table: Year Ended December 31,
table: 2019 2018 2017
table: Net cash provided by operating activities $153,327 $256,426 $160,394
table: Net cash used in investing activities $(15,381) $(6,581) $(4,135)
table: Net cash used in financing activities $(150,604) $(145,184) $(30,535)
question: Analyse this data from a financial earnings document. What was the change in the Net cash used in investing activities between 2017 and 2019?