| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 1 Jun 1981 | USD | 22.5 | 22.75 | 22.5 | 22.5 | 72,000 | +0.25 (+1.12%) | 19,100 |
| 29 May 1981 | USD | 22.25 | 22.375 | 22.25 | 22.25 | 71,200 | +0.625 (+2.89%) | 10,200 |
| 28 May 1981 | USD | 21.625 | 21.75 | 21.625 | 21.625 | 69,200 | +0.25 (+1.17%) | 9,500 |
| 27 May 1981 | USD | 21.375 | 21.625 | 21.375 | 21.375 | 68,400 | +0.5 (+2.40%) | 5,600 |
| 26 May 1981 | USD | 20.875 | 21.125 | 20.875 | 20.875 | 66,800 | +0.125 (+0.60%) | 2,000 |
| 25 May 1981 | USD | 20.75 | 20.75 | 20.75 | 20.75 | 66,400 | 0.0 (0.0%) | 0 |
| 22 May 1981 | USD | 20.75 | 21 | 20.75 | 20.75 | 66,400 | 0.0 (0.0%) | 3,800 |
| 21 May 1981 | USD | 20.75 | 21 | 20.75 | 20.75 | 66,400 | 0.0 (0.0%) | 18,600 |
| 20 May 1981 | USD | 20.75 | 21 | 20.75 | 20.75 | 66,400 | -0.125 (-0.60%) | 1,900 |
| 19 May 1981 | USD | 20.875 | 21.125 | 20.875 | 20.875 | 66,800 | 0.0 (0.0%) | 700 |
| 18 May 1981 | USD | 20.875 | 21.125 | 20.875 | 20.875 | 66,800 | 0.0 (0.0%) | 1,400 |
| 15 May 1981 | USD | 20.875 | 21 | 20.875 | 20.875 | 66,800 | 0.0 (0.0%) | 8,200 |
| 14 May 1981 | USD | 20.875 | 21.125 | 20.875 | 20.875 | 66,800 | 0.0 (0.0%) | 14,600 |
| 13 May 1981 | USD | 20.875 | 21.25 | 20.875 | 20.875 | 66,800 | -0.25 (-1.18%) | 6,300 |
| 12 May 1981 | USD | 21.125 | 21.375 | 21.125 | 21.125 | 67,600 | 0.0 (0.0%) | 2,100 |
| 11 May 1981 | USD | 21.125 | 21.375 | 21.125 | 21.125 | 67,600 | 0.0 (0.0%) | 5,600 |
| 8 May 1981 | USD | 21.125 | 21.25 | 21.125 | 21.125 | 67,600 | 0.0 (0.0%) | 7,700 |
| 7 May 1981 | USD | 21.125 | 21.25 | 21.125 | 21.125 | 67,600 | 0.0 (0.0%) | 1,300 |
| 6 May 1981 | USD | 21.125 | 21.25 | 21.125 | 21.125 | 67,600 | 0.0 (0.0%) | 7,700 |
| 5 May 1981 | USD | 21.125 | 21.375 | 21.125 | 21.125 | 67,600 | -0.5 (-2.31%) | 9,600 |
| 4 May 1981 | USD | 21.625 | 22 | 21.625 | 21.625 | 69,200 | -0.625 (-2.81%) | 10,100 |
| 1 May 1981 | USD | 22.25 | 22.5 | 22.25 | 22.25 | 71,200 | -0.375 (-1.66%) | 18,600 |
| 30 Apr 1981 | USD | 22.625 | 22.75 | 22.625 | 22.625 | 72,400 | -0.25 (-1.09%) | 12,700 |
| 29 Apr 1981 | USD | 22.875 | 23.125 | 22.875 | 22.875 | 73,200 | -0.25 (-1.08%) | 8,800 |
| 28 Apr 1981 | USD | 23.125 | 23.375 | 23.125 | 23.125 | 74,000 | +0.25 (+1.09%) | 14,000 |
| 27 Apr 1981 | USD | 22.875 | 23.125 | 22.875 | 22.875 | 73,200 | +0.125 (+0.55%) | 29,200 |
| 24 Apr 1981 | USD | 22.75 | 22.875 | 22.75 | 22.75 | 72,800 | +0.375 (+1.68%) | 4,400 |
| 23 Apr 1981 | USD | 22.375 | 22.625 | 22.375 | 22.375 | 71,600 | +0.375 (+1.70%) | 7,100 |
| 22 Apr 1981 | USD | 22 | 22.25 | 22 | 22 | 70,400 | 0.0 (0.0%) | 1,200 |
| 21 Apr 1981 | USD | 22 | 22.25 | 22 | 22 | 70,400 | 0.0 (0.0%) | 1,300 |
