Table:
Years Ended December 31,

2019	2018	2017

Net realized gains (losses) from sales of trading securities	$143	$10	$195

Dividend and interest income	419	635	422

Net unrealized holding gains (losses)	1,817	(1,512)	1,002

$2,379	$(867)	$1,619

Answer the following question taking into account the table plus the background text, feel free to explain how you reached the answer, then present the result in JSON format {"answer": ["ANSWER"], "scale": "SCALE"} (leave scale empty if none).

Supporting text:
Note 13. Investments Held in Rabbi Trust
The mutual funds held in the rabbi trust were 66% equity-based and 34% debt-based as of December 31, 2019. Net investment income (losses), included in “Other income (expense), net” in the accompanying Consolidated Statements of Operations consisted of the following (in thousands):

Question: What was the percentage change in Dividend and interest income in 2018 from 2017?

((635-422)/422) * 100, therefore {"answer": "50.47", "scale": "percent"}