pre_text: Teradyne determined the stock options’ expected life based upon historical exercise data for executive officers, the age of the executive officers and the terms of the stock option grant. Volatility was determined using historical volatility for a period equal to the expected life. The risk-free interest rate was determined using the U.S. Treasury yield curve in effect at the time of grant. Dividend yield was based upon an estimated annual dividend amount of $0.36 per share divided by Teradyne’s stock price on the grant date of $37.95 for the 2019 grants, $47.70 for the 2018 grants and $28.56 for the 2017 grants. Stock compensation plan activity for the years 2019, 2018, and 2017, is as follows:
table: 2019 2018 2017
table: (in thousands)
table: Restricted Stock Units:
table: Non-vested at January 1 2,454 3,174 3,778
table: Awarded 1,139 790 939
table: Vested (1,237) (1,382) (1,434)
table: Forfeited (87) (128) (109)
table: Non-vested at December31 2,269 2,454 3,174
table: Stock Options:
table: Outstanding at January 1 506 531 926
table: Granted 102 69 111
table: Exercised (280) (94) (501)
table: Forfeited (7) — —
table: Expired (2) — (5)
table: Outstanding at December 31 319 506 531
table: Vested and expected to vest at December 31 319 506 531
table: Exercisable at December 31 85 256 233
question: Analyse this data from a financial earnings document. What was the change in granted stocks in 2019 from 2018?