| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 15 May 1981 | USD | 33.5 | 33.5 | 32.75 | 33.5 | 3.6662 | +0.624 (+1.90%) | 12,800 |
| 14 May 1981 | USD | 32.876 | 33 | 32.626 | 32.876 | 3.5979 | +0.126 (+0.38%) | 4,800 |
| 13 May 1981 | USD | 32.75 | 33 | 32.376 | 32.75 | 3.5841 | +0.374 (+1.16%) | 21,800 |
| 12 May 1981 | USD | 32.376 | 32.5 | 32 | 32.376 | 3.5432 | 0.0 (0.0%) | 5,500 |
| 11 May 1981 | USD | 32.376 | 32.876 | 32.376 | 32.376 | 3.5432 | -0.5 (-1.52%) | 9,500 |
| 8 May 1981 | USD | 32.876 | 32.876 | 32.5 | 32.876 | 3.5979 | +0.5 (+1.54%) | 8,500 |
| 7 May 1981 | USD | 32.376 | 32.5 | 32.126 | 32.376 | 3.5432 | -0.124 (-0.38%) | 3,000 |
| 6 May 1981 | USD | 32.5 | 32.5 | 32.126 | 32.5 | 3.5567 | 0.0 (0.0%) | 7,100 |
| 5 May 1981 | USD | 32.5 | 32.75 | 32 | 32.5 | 3.5567 | -0.25 (-0.76%) | 5,800 |
| 4 May 1981 | USD | 32.75 | 32.75 | 32.5 | 32.75 | 3.5841 | +0.124 (+0.38%) | 1,700 |
| 1 May 1981 | USD | 32.626 | 32.876 | 32.626 | 32.626 | 3.5705 | -0.124 (-0.38%) | 2,500 |
| 30 Apr 1981 | USD | 32.75 | 32.876 | 32.25 | 32.75 | 3.5841 | +0.374 (+1.16%) | 5,900 |
| 29 Apr 1981 | USD | 32.376 | 32.876 | 32 | 32.376 | 3.5432 | -0.374 (-1.14%) | 10,800 |
| 28 Apr 1981 | USD | 32.75 | 32.876 | 32.626 | 32.75 | 3.5841 | -0.126 (-0.38%) | 6,200 |
| 27 Apr 1981 | USD | 32.876 | 32.876 | 32.5 | 32.876 | 3.5979 | 0.0 (0.0%) | 3,600 |
| 24 Apr 1981 | USD | 32.876 | 32.876 | 32.376 | 32.876 | 3.5979 | -0.5 (-1.50%) | 6,400 |
| 23 Apr 1981 | USD | 33.376 | 33.626 | 33.376 | 33.376 | 3.6526 | 0.0 (0.0%) | 3,000 |
| 22 Apr 1981 | USD | 33.376 | 33.5 | 33 | 33.376 | 3.6526 | +0.126 (+0.38%) | 2,000 |
| 21 Apr 1981 | USD | 33.25 | 34.25 | 33 | 33.25 | 3.6388 | -1.376 (-3.97%) | 30,600 |
| 20 Apr 1981 | USD | 34.626 | 34.876 | 34 | 34.626 | 3.7894 | -0.374 (-1.07%) | 8,500 |
| 17 Apr 1981 | USD | 35 | 35 | 35 | 35 | 3.8303 | 0.0 (0.0%) | 0 |
| 16 Apr 1981 | USD | 35 | 35.5 | 35 | 35 | 3.8303 | -0.5 (-1.41%) | 9,700 |
| 15 Apr 1981 | USD | 35.5 | 35.876 | 35.5 | 35.5 | 3.885 | -0.376 (-1.05%) | 2,000 |
| 14 Apr 1981 | USD | 35.876 | 36.376 | 35.626 | 35.876 | 3.9262 | -0.374 (-1.03%) | 5,700 |
| 13 Apr 1981 | USD | 36.25 | 36.5 | 36.25 | 36.25 | 3.9671 | +0.124 (+0.34%) | 6,200 |
| 10 Apr 1981 | USD | 36.126 | 36.5 | 36.126 | 36.126 | 3.9536 | -0.25 (-0.69%) | 3,800 |
| 9 Apr 1981 | USD | 36.376 | 36.626 | 36.126 | 36.376 | 3.9809 | 0.0 (0.0%) | 4,000 |
| 8 Apr 1981 | USD | 36.376 | 36.75 | 36 | 36.376 | 3.9809 | +0.376 (+1.04%) | 14,700 |
| 7 Apr 1981 | USD | 36 | 36 | 35.626 | 36 | 3.9398 | +0.124 (+0.35%) | 2,400 |
| 6 Apr 1981 | USD | 35.876 | 36.126 | 35.626 | 35.876 | 3.9262 | -0.374 (-1.03%) | 3,100 |
