| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 28 May 1981 | USD | 7.625 | 7.75 | 7.625 | 7.625 | 114,375 | +0.25 (+3.39%) | 66,800 |
| 27 May 1981 | USD | 7.375 | 7.625 | 7.375 | 7.375 | 110,625 | +0.25 (+3.51%) | 33,000 |
| 26 May 1981 | USD | 7.125 | 7.375 | 7.125 | 7.125 | 106,875 | +1.25 (+21.28%) | 65,500 |
| 25 May 1981 | USD | 5.875 | 5.875 | 5.875 | 5.875 | 88,125 | 0.0 (0.0%) | 0 |
| 22 May 1981 | USD | 5.875 | 6.125 | 5.875 | 5.875 | 88,125 | 0.0 (0.0%) | 4,100 |
| 21 May 1981 | USD | 5.875 | 6 | 5.875 | 5.875 | 88,125 | 0.0 (0.0%) | 4,600 |
| 20 May 1981 | USD | 5.875 | 6.125 | 5.875 | 5.875 | 88,125 | +0.125 (+2.17%) | 12,800 |
| 19 May 1981 | USD | 5.75 | 6 | 5.75 | 5.75 | 86,250 | -0.125 (-2.13%) | 10,500 |
| 18 May 1981 | USD | 5.875 | 6.125 | 5.875 | 5.875 | 88,125 | 0.0 (0.0%) | 7,700 |
| 15 May 1981 | USD | 5.875 | 6.125 | 5.875 | 5.875 | 88,125 | 0.0 (0.0%) | 9,900 |
| 14 May 1981 | USD | 5.875 | 6.125 | 5.875 | 5.875 | 88,125 | +0.25 (+4.44%) | 51,000 |
| 13 May 1981 | USD | 5.625 | 5.75 | 5.625 | 5.625 | 84,375 | 0.0 (0.0%) | 3,000 |
| 12 May 1981 | USD | 5.625 | 5.75 | 5.625 | 5.625 | 84,375 | 0.0 (0.0%) | 17,400 |
| 11 May 1981 | USD | 5.625 | 5.75 | 5.625 | 5.625 | 84,375 | -0.25 (-4.26%) | 30,000 |
| 8 May 1981 | USD | 5.875 | 6.125 | 5.875 | 5.875 | 88,125 | 0.0 (0.0%) | 5,000 |
| 7 May 1981 | USD | 5.875 | 6.125 | 5.875 | 5.875 | 88,125 | 0.0 (0.0%) | 19,600 |
