| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 3 Jul 1981 | USD | 28.88 | 28.88 | 28.88 | 28.88 | 28.88 | +0.005 (+0.02%) | 0 |
| 2 Jul 1981 | USD | 28.875 | 28.875 | 28.5 | 28.875 | 28.875 | 0.0 (0.0%) | 750 |
| 1 Jul 1981 | USD | 28.875 | 28.875 | 28.875 | 28.875 | 28.875 | 0.0 (0.0%) | 100 |
| 30 Jun 1981 | USD | 28.875 | 28.875 | 28.875 | 28.875 | 28.875 | +0.125 (+0.43%) | 200 |
| 29 Jun 1981 | USD | 28.75 | 28.75 | 28.25 | 28.75 | 28.75 | +0.75 (+2.68%) | 400 |
| 26 Jun 1981 | USD | 28 | 28 | 28 | 28 | 28 | -0.5 (-1.75%) | 50 |
| 25 Jun 1981 | USD | 28.5 | 29 | 28.5 | 28.5 | 28.5 | -0.5 (-1.72%) | 10,150 |
| 24 Jun 1981 | USD | 29 | 29 | 29 | 29 | 29 | -0.75 (-2.52%) | 400 |
| 23 Jun 1981 | USD | 29.75 | 29.75 | 29.75 | 29.75 | 29.75 | -0.5 (-1.65%) | 50 |
| 22 Jun 1981 | USD | 30.25 | 30.25 | 30.25 | 30.25 | 30.25 | 0.0 (0.0%) | 0 |
| 19 Jun 1981 | USD | 30.25 | 30.25 | 30.25 | 30.25 | 30.25 | 0.0 (0.0%) | 150 |
| 18 Jun 1981 | USD | 30.25 | 30.25 | 30.25 | 30.25 | 30.25 | +0.5 (+1.68%) | 50 |
| 17 Jun 1981 | USD | 29.75 | 29.75 | 29.75 | 29.75 | 29.75 | 0.0 (0.0%) | 0 |
| 16 Jun 1981 | USD | 29.75 | 29.75 | 29.75 | 29.75 | 29.75 | 0.0 (0.0%) | 0 |
| 15 Jun 1981 | USD | 29.75 | 29.75 | 29.75 | 29.75 | 29.75 | -0.25 (-0.83%) | 250 |
| 12 Jun 1981 | USD | 30 | 30 | 30 | 30 | 30 | 0.0 (0.0%) | 0 |
| 11 Jun 1981 | USD | 30 | 30.5 | 30 | 30 | 30 | -0.75 (-2.44%) | 200 |
| 10 Jun 1981 | USD | 30.75 | 31 | 30.75 | 30.75 | 30.75 | -0.25 (-0.81%) | 150 |
| 9 Jun 1981 | USD | 31 | 31 | 31 | 31 | 31 | -0.5 (-1.59%) | 50 |
| 8 Jun 1981 | USD | 31.5 | 31.5 | 31.5 | 31.5 | 31.5 | 0.0 (0.0%) | 0 |
| 5 Jun 1981 | USD | 31.5 | 32 | 31.5 | 31.5 | 31.5 | -1 (-3.08%) | 200 |
| 4 Jun 1981 | USD | 32.5 | 32.5 | 32.5 | 32.5 | 32.5 | 0.0 (0.0%) | 0 |
| 3 Jun 1981 | USD | 32.5 | 32.5 | 32.5 | 32.5 | 32.5 | 0.0 (0.0%) | 100 |
| 2 Jun 1981 | USD | 32.5 | 32.5 | 31.5 | 32.5 | 32.5 | +1.75 (+5.69%) | 500 |
| 1 Jun 1981 | USD | 30.75 | 30.75 | 30.75 | 30.75 | 30.75 | +0.5 (+1.65%) | 50 |
| 29 May 1981 | USD | 30.25 | 30.5 | 30.25 | 30.25 | 30.25 | +0.25 (+0.83%) | 200 |
| 28 May 1981 | USD | 30 | 30 | 30 | 30 | 30 | 0.0 (0.0%) | 100 |
| 27 May 1981 | USD | 30 | 30 | 30 | 30 | 30 | 0.0 (0.0%) | 0 |
| 26 May 1981 | USD | 30 | 30 | 30 | 30 | 30 | 0.0 (0.0%) | 100 |
| 25 May 1981 | USD | 30 | 30 | 30 | 30 | 30 | 0.0 (0.0%) | 0 |
