| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 27 May 1981 | USD | 11.375 | 11.375 | 11.25 | 11.375 | 3.4745 | +0.125 (+1.11%) | 64,600 |
| 26 May 1981 | USD | 11.25 | 11.5 | 11.25 | 11.25 | 3.4363 | -0.25 (-2.17%) | 73,700 |
| 25 May 1981 | USD | 11.5 | 11.5 | 11.5 | 11.5 | 3.5127 | 0.0 (0.0%) | 0 |
| 22 May 1981 | USD | 11.5 | 11.5 | 11.375 | 11.5 | 3.5127 | +0.125 (+1.10%) | 58,300 |
| 21 May 1981 | USD | 11.375 | 11.5 | 11.25 | 11.375 | 3.4745 | -0.125 (-1.09%) | 68,900 |
| 20 May 1981 | USD | 11.5 | 11.5 | 11.125 | 11.5 | 3.5127 | +0.25 (+2.22%) | 119,100 |
| 19 May 1981 | USD | 11.25 | 11.375 | 11.125 | 11.25 | 3.4363 | -0.125 (-1.10%) | 111,100 |
| 18 May 1981 | USD | 11.375 | 11.625 | 11.375 | 11.375 | 3.4745 | -0.125 (-1.09%) | 81,800 |
| 15 May 1981 | USD | 11.5 | 11.5 | 11.375 | 11.5 | 3.5127 | 0.0 (0.0%) | 65,300 |
| 14 May 1981 | USD | 11.5 | 11.5 | 11.375 | 11.5 | 3.5127 | +0.125 (+1.10%) | 67,100 |
| 13 May 1981 | USD | 11.375 | 11.5 | 11.25 | 11.375 | 3.4745 | +0.125 (+1.11%) | 150,200 |
| 12 May 1981 | USD | 11.25 | 11.25 | 11 | 11.25 | 3.4363 | +0.25 (+2.27%) | 76,100 |
| 11 May 1981 | USD | 11 | 11.25 | 11 | 11 | 3.3599 | -0.125 (-1.12%) | 93,000 |
| 8 May 1981 | USD | 11.125 | 11.25 | 11.125 | 11.125 | 3.3981 | 0.0 (0.0%) | 62,600 |
| 7 May 1981 | USD | 11.125 | 11.25 | 11.125 | 11.125 | 3.3981 | +0.125 (+1.14%) | 74,900 |
| 6 May 1981 | USD | 11 | 11.25 | 10.875 | 11 | 3.3599 | 0.0 (0.0%) | 96,100 |
| 5 May 1981 | USD | 11 | 11.125 | 11 | 11 | 3.3599 | -0.125 (-1.12%) | 273,100 |
| 4 May 1981 | USD | 11.125 | 11.375 | 11.125 | 11.125 | 3.3981 | -0.25 (-2.20%) | 108,400 |
| 1 May 1981 | USD | 11.375 | 11.625 | 11.25 | 11.375 | 3.4745 | 0.0 (0.0%) | 124,400 |
| 30 Apr 1981 | USD | 11.375 | 11.5 | 11.375 | 11.375 | 3.4745 | 0.0 (0.0%) | 69,100 |
| 29 Apr 1981 | USD | 11.375 | 11.625 | 11.375 | 11.375 | 3.4745 | -0.125 (-1.09%) | 183,000 |
| 28 Apr 1981 | USD | 11.5 | 11.625 | 11.375 | 11.5 | 3.5127 | -0.5 (-4.17%) | 272,700 |
| 27 Apr 1981 | USD | 12 | 12.25 | 12 | 12 | 3.6654 | -0.125 (-1.03%) | 152,600 |
| 24 Apr 1981 | USD | 12.125 | 12.25 | 12.125 | 12.125 | 3.7036 | 0.0 (0.0%) | 101,100 |
| 23 Apr 1981 | USD | 12.125 | 12.375 | 12.125 | 12.125 | 3.7036 | -0.125 (-1.02%) | 87,200 |
| 22 Apr 1981 | USD | 12.25 | 12.375 | 12.25 | 12.25 | 3.7418 | -0.125 (-1.01%) | 70,600 |
| 21 Apr 1981 | USD | 12.375 | 12.5 | 12.25 | 12.375 | 3.7799 | +0.25 (+2.06%) | 166,200 |
| 20 Apr 1981 | USD | 12.125 | 12.375 | 12 | 12.125 | 3.7036 | 0.0 (0.0%) | 112,400 |
| 17 Apr 1981 | USD | 12.125 | 12.125 | 12.125 | 12.125 | 3.7036 | 0.0 (0.0%) | 0 |
| 16 Apr 1981 | USD | 12.125 | 12.125 | 11.75 | 12.125 | 3.7036 | +0.25 (+2.11%) | 231,000 |
