Table:
|  | Number of Shares | Amount |
| --- | --- | --- |
|  |  | (U.S. $ in thousands) |
| Details |  |  |
| Balance as of June 30, 2017 | 91,979,704 | $9,198 |
| Conversion of Class B ordinary shares | 5,861,707 | 587 |
| Exercise of share options | 1,902,084 | 190 |
| Issuance for settlement of RSUs | 5,253,809 | 525 |
| Vesting of share options that were early exercised | 374,496 | 37 |
| Balance as of June 30, 2018 | 105,371,800 | 10,537 |
| Conversion of Class B ordinary shares | 5,219,947 | 522 |
| Exercise of share options | 1,496,875 | 150 |
| Issuance for settlement of RSUs | 4,674,873 | 467 |
| Vesting of share options that were early exercised | 510,071 | 51 |
| Balance as of June 30, 2019 | 117,273,566 | $11,727 |
Paragraphs:
Movements in Class A ordinary share capital
Class A shares as of June 30, 2019 and June 30, 2018 does not include 911,367 and 827,871 shares of restricted stock outstanding, respectively, that are subject to forfeiture or repurchase.
Question:
What is the average annual number of shares of restricted stock outstanding for both years ended June 30, 2018 and 2019?