| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 3 Jun 1981 | USD | 20.75 | 21.25 | 20.75 | 20.75 | 2.5938 | -1 (-4.60%) | 18,000 |
| 2 Jun 1981 | USD | 21.75 | 22.25 | 21.75 | 21.75 | 2.7188 | -1.25 (-5.43%) | 21,400 |
| 1 Jun 1981 | USD | 23 | 23.5 | 23 | 23 | 2.875 | +1.25 (+5.75%) | 30,400 |
| 29 May 1981 | USD | 21.75 | 22.5 | 21.75 | 21.75 | 2.7188 | +0.75 (+3.57%) | 14,900 |
| 28 May 1981 | USD | 21 | 21.5 | 21 | 21 | 2.625 | -0.25 (-1.18%) | 12,000 |
| 27 May 1981 | USD | 21.25 | 21.75 | 21.25 | 21.25 | 2.6562 | 0.0 (0.0%) | 16,600 |
| 26 May 1981 | USD | 21.25 | 22 | 21.25 | 21.25 | 2.6562 | +0.75 (+3.66%) | 57,700 |
| 25 May 1981 | USD | 20.5 | 20.5 | 20.5 | 20.5 | 2.5625 | 0.0 (0.0%) | 0 |
| 22 May 1981 | USD | 20.5 | 20.75 | 20.5 | 20.5 | 2.5625 | +1.5 (+7.89%) | 22,500 |
| 21 May 1981 | USD | 19 | 19.25 | 19 | 19 | 2.375 | +0.5 (+2.70%) | 18,900 |
| 20 May 1981 | USD | 18.5 | 19 | 18.5 | 18.5 | 2.3125 | +0.25 (+1.37%) | 19,900 |
| 19 May 1981 | USD | 18.25 | 18.75 | 18.25 | 18.25 | 2.2812 | -0.25 (-1.35%) | 13,200 |
| 18 May 1981 | USD | 18.5 | 18.75 | 18.5 | 18.5 | 2.3125 | 0.0 (0.0%) | 35,500 |
| 15 May 1981 | USD | 18.5 | 19 | 18.5 | 18.5 | 2.3125 | +0.75 (+4.23%) | 39,000 |
| 14 May 1981 | USD | 17.75 | 18.25 | 17.75 | 17.75 | 2.2188 | 0.0 (0.0%) | 30,900 |
| 13 May 1981 | USD | 17.75 | 18.25 | 17.75 | 17.75 | 2.2188 | -0.5 (-2.74%) | 40,500 |
| 12 May 1981 | USD | 18.25 | 18.5 | 18.25 | 18.25 | 2.2812 | -0.75 (-3.95%) | 24,200 |
| 11 May 1981 | USD | 19 | 19.25 | 19 | 19 | 2.375 | -0.25 (-1.30%) | 24,600 |
| 8 May 1981 | USD | 19.25 | 19.75 | 19.25 | 19.25 | 2.4062 | -0.25 (-1.28%) | 22,900 |
| 7 May 1981 | USD | 19.5 | 20.25 | 19.5 | 19.5 | 2.4375 | +0.25 (+1.30%) | 83,800 |
| 6 May 1981 | USD | 19.25 | 19.75 | 19.25 | 19.25 | 2.4062 | -1 (-4.94%) | 24,600 |
| 5 May 1981 | USD | 20.25 | 21 | 20.25 | 20.25 | 2.5312 | -0.5 (-2.41%) | 8,400 |
| 4 May 1981 | USD | 20.75 | 21.25 | 20.75 | 20.75 | 2.5938 | -1.5 (-6.74%) | 13,300 |
| 1 May 1981 | USD | 22.25 | 22.75 | 22.25 | 22.25 | 2.7812 | -0.25 (-1.11%) | 3,900 |
| 30 Apr 1981 | USD | 22.5 | 22.75 | 22.5 | 22.5 | 2.8125 | 0.0 (0.0%) | 12,700 |
| 29 Apr 1981 | USD | 22.5 | 23 | 22.5 | 22.5 | 2.8125 | -0.5 (-2.17%) | 7,900 |
| 28 Apr 1981 | USD | 23 | 23.5 | 23 | 23 | 2.875 | -1 (-4.17%) | 15,100 |
| 27 Apr 1981 | USD | 24 | 24.5 | 24 | 24 | 3 | +0.75 (+3.23%) | 23,400 |
| 24 Apr 1981 | USD | 23.25 | 23.75 | 23.25 | 23.25 | 2.9062 | 0.0 (0.0%) | 3,200 |
| 23 Apr 1981 | USD | 23.25 | 23.75 | 23.25 | 23.25 | 2.9062 | +0.25 (+1.09%) | 8,900 |
