| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 4 Jun 1981 | USD | 27 | 27.25 | 27 | 27 | 11.6279 | -0.75 (-2.70%) | 28,400 |
| 3 Jun 1981 | USD | 27.75 | 28.25 | 27.75 | 27.75 | 11.9509 | -0.75 (-2.63%) | 16,600 |
| 2 Jun 1981 | USD | 28.5 | 28.75 | 28.5 | 28.5 | 12.2739 | -0.125 (-0.44%) | 12,300 |
| 1 Jun 1981 | USD | 28.625 | 29.25 | 28.625 | 28.625 | 12.3277 | -0.25 (-0.87%) | 9,300 |
| 29 May 1981 | USD | 28.875 | 29.25 | 28.875 | 28.875 | 12.4354 | -0.25 (-0.86%) | 21,500 |
| 28 May 1981 | USD | 29.125 | 29.5 | 29.125 | 29.125 | 12.5431 | +0.875 (+3.10%) | 16,400 |
| 27 May 1981 | USD | 28.25 | 28.625 | 28.25 | 28.25 | 12.1662 | +0.5 (+1.80%) | 17,600 |
| 26 May 1981 | USD | 27.75 | 28 | 27.75 | 27.75 | 11.9509 | -0.875 (-3.06%) | 31,400 |
| 25 May 1981 | USD | 28.625 | 28.625 | 28.625 | 28.625 | 12.3277 | 0.0 (0.0%) | 0 |
| 22 May 1981 | USD | 28.625 | 29 | 28.625 | 28.625 | 12.3277 | -0.125 (-0.43%) | 15,900 |
| 21 May 1981 | USD | 28.75 | 29.25 | 28.75 | 28.75 | 12.3816 | -1 (-3.36%) | 14,300 |
| 20 May 1981 | USD | 29.75 | 30.25 | 29.75 | 29.75 | 12.8122 | +0.125 (+0.42%) | 26,100 |
| 19 May 1981 | USD | 29.625 | 30 | 29.625 | 29.625 | 12.7584 | -0.125 (-0.42%) | 19,500 |
| 18 May 1981 | USD | 29.75 | 30 | 29.75 | 29.75 | 12.8122 | +0.5 (+1.71%) | 37,000 |
| 15 May 1981 | USD | 29.25 | 29.75 | 29.25 | 29.25 | 12.5969 | -0.125 (-0.43%) | 20,700 |
| 14 May 1981 | USD | 29.375 | 29.625 | 29.375 | 29.375 | 12.6507 | +0.125 (+0.43%) | 27,700 |
| 13 May 1981 | USD | 29.25 | 29.625 | 29.25 | 29.25 | 12.5969 | -0.125 (-0.43%) | 28,300 |
| 12 May 1981 | USD | 29.375 | 29.75 | 29.375 | 29.375 | 12.6507 | +0.5 (+1.73%) | 21,800 |
| 11 May 1981 | USD | 28.875 | 29 | 28.875 | 28.875 | 12.4354 | +0.125 (+0.43%) | 41,600 |
| 8 May 1981 | USD | 28.75 | 29 | 28.75 | 28.75 | 12.3816 | +0.75 (+2.68%) | 20,800 |
| 7 May 1981 | USD | 28 | 28.25 | 28 | 28 | 12.0586 | +0.75 (+2.75%) | 26,500 |
| 6 May 1981 | USD | 27.25 | 27.75 | 27.25 | 27.25 | 11.7356 | -0.5 (-1.80%) | 10,000 |
| 5 May 1981 | USD | 27.75 | 28 | 27.75 | 27.75 | 11.9509 | +0.125 (+0.45%) | 20,300 |
| 4 May 1981 | USD | 27.625 | 27.75 | 27.625 | 27.625 | 11.8971 | -0.625 (-2.21%) | 14,500 |
| 1 May 1981 | USD | 28.25 | 28.625 | 28.25 | 28.25 | 12.1662 | +0.25 (+0.89%) | 18,900 |
| 30 Apr 1981 | USD | 28 | 28.375 | 28 | 28 | 12.0586 | +0.75 (+2.75%) | 33,000 |
| 29 Apr 1981 | USD | 27.25 | 27.625 | 27.25 | 27.25 | 11.7356 | -0.5 (-1.80%) | 24,900 |
| 28 Apr 1981 | USD | 27.75 | 28 | 27.75 | 27.75 | 11.9509 | +0.125 (+0.45%) | 78,400 |
| 27 Apr 1981 | USD | 27.625 | 27.75 | 27.625 | 27.625 | 11.8971 | +0.125 (+0.45%) | 13,400 |
| 24 Apr 1981 | USD | 27.5 | 28 | 27.5 | 27.5 | 11.8432 | -0.625 (-2.22%) | 19,100 |
