| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 28 May 1981 | USD | 36 | 38 | 36 | 36 | 0.18 | 0.0 (0.0%) | 9,320,000 |
| 27 May 1981 | USD | 36 | 38 | 36 | 36 | 0.18 | -4 (-10%) | 6,940,000 |
| 26 May 1981 | USD | 40 | 40 | 40 | 40 | 0.2 | 0.0 (0.0%) | 6,740,000 |
| 25 May 1981 | USD | 40 | 40 | 40 | 40 | 0.2 | 0.0 (0.0%) | 0 |
| 22 May 1981 | USD | 40 | 40 | 40 | 40 | 0.2 | 0.0 (0.0%) | 9,120,000 |
| 21 May 1981 | USD | 40 | 40 | 40 | 40 | 0.2 | +2 (+5.26%) | 20,260,000 |
| 20 May 1981 | USD | 38 | 38 | 38 | 38 | 0.19 | +2 (+5.56%) | 23,500,000 |
| 19 May 1981 | USD | 36 | 36 | 36 | 36 | 0.18 | +2 (+5.88%) | 10,500,000 |
| 18 May 1981 | USD | 34 | 36 | 34 | 34 | 0.17 | 0.0 (0.0%) | 13,160,000 |
| 15 May 1981 | USD | 34 | 34 | 34 | 34 | 0.17 | 0.0 (0.0%) | 11,560,000 |
| 14 May 1981 | USD | 34 | 34 | 34 | 34 | 0.17 | 0.0 (0.0%) | 6,240,000 |
| 13 May 1981 | USD | 34 | 34 | 34 | 34 | 0.17 | 0.0 (0.0%) | 7,360,000 |
| 12 May 1981 | USD | 34 | 34 | 34 | 34 | 0.17 | 0.0 (0.0%) | 8,780,000 |
| 11 May 1981 | USD | 34 | 34 | 34 | 34 | 0.17 | 0.0 (0.0%) | 11,420,000 |
| 8 May 1981 | USD | 34 | 34 | 34 | 34 | 0.17 | 0.0 (0.0%) | 10,620,000 |
| 7 May 1981 | USD | 34 | 34 | 34 | 34 | 0.17 | +2 (+6.25%) | 7,820,000 |
| 6 May 1981 | USD | 32 | 34 | 32 | 32 | 0.16 | 0.0 (0.0%) | 15,700,000 |
| 5 May 1981 | USD | 32 | 32 | 32 | 32 | 0.16 | 0.0 (0.0%) | 12,560,000 |
| 4 May 1981 | USD | 32 | 32 | 32 | 32 | 0.16 | 0.0 (0.0%) | 3,340,000 |
| 1 May 1981 | USD | 32 | 34 | 32 | 32 | 0.16 | 0.0 (0.0%) | 15,180,000 |
| 30 Apr 1981 | USD | 32 | 32 | 32 | 32 | 0.16 | 0.0 (0.0%) | 16,760,000 |
