Table:
|  | 2019 | 2018 |
| --- | --- | --- |
|  | Number | Number |
| Outstanding at 1 April | 690,791 | 776,045 |
| Dividend shares awarded | 4,518 | 9,778 |
| Forfeited | (9,275) | (75,986) |
| Released | (365,162) | (19,046) |
| Outstanding at 31 March | 320,872 | 690,791 |
| Vested and outstanding at 31 March | 320,872 | – |
Paragraphs:
UK SIP
The weighted average market value per ordinary share for SIP awards released in 2019 was 386.1p (2018: 372.0p). The SIP shares outstanding at 31 March 2018 have fully vested (2018: had a weighted average remaining vesting period of 0.1 years). Shares released prior to the vesting date relate to those attributable to good leavers as defined by the scheme rules.
Question:
For which years was the amount Outstanding at 31 March calculated in?
Answer: 2019, 2018