| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 22 May 1981 | USD | 37.749 | 38.001 | 37.749 | 37.749 | 0.3932 | +0.249 (+0.66%) | 156,400 |
| 21 May 1981 | USD | 37.5 | 37.749 | 37.5 | 37.5 | 0.3906 | +0.249 (+0.67%) | 105,600 |
| 20 May 1981 | USD | 37.251 | 37.5 | 37.251 | 37.251 | 0.388 | +1.5 (+4.20%) | 100,300 |
| 19 May 1981 | USD | 35.751 | 36.249 | 35.751 | 35.751 | 0.3724 | -0.498 (-1.37%) | 106,900 |
| 18 May 1981 | USD | 36.249 | 36.501 | 36.249 | 36.249 | 0.3776 | 0.0 (0.0%) | 112,200 |
| 15 May 1981 | USD | 36.249 | 36.501 | 36.249 | 36.249 | 0.3776 | +0.249 (+0.69%) | 106,000 |
| 14 May 1981 | USD | 36 | 36.249 | 36 | 36 | 0.375 | +0.75 (+2.13%) | 110,500 |
| 13 May 1981 | USD | 35.25 | 35.499 | 35.25 | 35.25 | 0.3672 | -0.249 (-0.70%) | 49,500 |
| 12 May 1981 | USD | 35.499 | 35.751 | 35.499 | 35.499 | 0.3698 | 0.0 (0.0%) | 69,400 |
| 11 May 1981 | USD | 35.499 | 35.751 | 35.499 | 35.499 | 0.3698 | -1.002 (-2.75%) | 69,000 |
| 8 May 1981 | USD | 36.501 | 36.75 | 36.501 | 36.501 | 0.3802 | 0.0 (0.0%) | 148,900 |
| 7 May 1981 | USD | 36.501 | 36.75 | 36.501 | 36.501 | 0.3802 | 0.0 (0.0%) | 65,700 |
| 6 May 1981 | USD | 36.501 | 36.75 | 36.501 | 36.501 | 0.3802 | 0.0 (0.0%) | 56,700 |
| 5 May 1981 | USD | 36.501 | 36.75 | 36.501 | 36.501 | 0.3802 | -0.249 (-0.68%) | 76,300 |
| 4 May 1981 | USD | 36.75 | 36.999 | 36.75 | 36.75 | 0.3828 | -0.75 (-2%) | 83,100 |
| 1 May 1981 | USD | 37.5 | 37.749 | 37.5 | 37.5 | 0.3906 | -0.249 (-0.66%) | 145,300 |
| 30 Apr 1981 | USD | 37.749 | 38.001 | 37.749 | 37.749 | 0.3932 | -0.501 (-1.31%) | 81,800 |
| 29 Apr 1981 | USD | 38.25 | 38.499 | 38.25 | 38.25 | 0.3984 | -0.501 (-1.29%) | 122,000 |
| 28 Apr 1981 | USD | 38.751 | 39.249 | 38.751 | 38.751 | 0.4037 | -0.498 (-1.27%) | 153,900 |
| 27 Apr 1981 | USD | 39.249 | 39.75 | 39.249 | 39.249 | 0.4088 | -0.75 (-1.88%) | 94,400 |
| 24 Apr 1981 | USD | 39.999 | 40.251 | 39.999 | 39.999 | 0.4167 | +0.249 (+0.63%) | 192,200 |
| 23 Apr 1981 | USD | 39.75 | 40.251 | 39.75 | 39.75 | 0.4141 | -0.75 (-1.85%) | 60,000 |
| 22 Apr 1981 | USD | 40.5 | 40.749 | 40.5 | 40.5 | 0.4219 | +0.501 (+1.25%) | 151,500 |
| 21 Apr 1981 | USD | 39.999 | 40.251 | 39.999 | 39.999 | 0.4167 | +0.75 (+1.91%) | 132,200 |
| 20 Apr 1981 | USD | 39.249 | 39.501 | 39.249 | 39.249 | 0.4088 | 0.0 (0.0%) | 70,400 |
| 17 Apr 1981 | USD | 39.249 | 39.249 | 39.249 | 39.249 | 0.4088 | 0.0 (0.0%) | 0 |
| 16 Apr 1981 | USD | 39.249 | 39.501 | 39.249 | 39.249 | 0.4088 | +0.498 (+1.29%) | 389,000 |
| 15 Apr 1981 | USD | 38.751 | 39 | 38.751 | 38.751 | 0.4037 | +0.252 (+0.65%) | 92,600 |
| 14 Apr 1981 | USD | 38.499 | 38.751 | 38.499 | 38.499 | 0.401 | +0.249 (+0.65%) | 90,300 |
| 13 Apr 1981 | USD | 38.25 | 38.499 | 38.25 | 38.25 | 0.3984 | +2.25 (+6.25%) | 86,000 |
