Table:
|  |  | Year Ended December 31, |  |
| --- | --- | --- | --- |
|  | 2019 | 2018 | 2017 |
| Gain (loss) on sold loan receivables held for sale | $— | $— | $(500) |
| Cash Flows |  |  |  |
| Sales of loans | $91,946 | $139,026 | $72,071 |
| Servicing fees | 3,901 | 2,321 | 2,821 |
Paragraphs:
GreenSky, Inc. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued) (United States Dollars in thousands, except per share data, unless otherwise stated)
The following table presents activities associated with our loan receivable sales and servicing activities during the periods indicated.
Question:
What was the change in the sales of loans between 2017 and 2018?
Answer: 139026-72071 = 66955