| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 21 May 1981 | USD | 13.875 | 14.125 | 13.625 | 13.875 | 462.5 | -0.125 (-0.89%) | 9,200 |
| 20 May 1981 | USD | 14 | 14 | 13.25 | 14 | 466.6667 | +0.625 (+4.67%) | 18,800 |
| 19 May 1981 | USD | 13.375 | 13.5 | 13.25 | 13.375 | 445.8333 | 0.0 (0.0%) | 6,600 |
| 18 May 1981 | USD | 13.375 | 13.625 | 13.25 | 13.375 | 445.8333 | -0.25 (-1.83%) | 5,300 |
| 15 May 1981 | USD | 13.625 | 13.625 | 13.375 | 13.625 | 454.1667 | +0.25 (+1.87%) | 9,900 |
| 14 May 1981 | USD | 13.375 | 13.375 | 12.875 | 13.375 | 445.8333 | +0.375 (+2.88%) | 8,500 |
| 13 May 1981 | USD | 13 | 13.25 | 12.75 | 13 | 433.3333 | +0.5 (+4%) | 19,600 |
| 12 May 1981 | USD | 12.5 | 13 | 12.5 | 12.5 | 416.6667 | -0.375 (-2.91%) | 10,900 |
| 11 May 1981 | USD | 12.875 | 13.25 | 12.5 | 12.875 | 429.1667 | +0.125 (+0.98%) | 20,500 |
| 8 May 1981 | USD | 12.75 | 12.75 | 12 | 12.75 | 425 | +0.625 (+5.15%) | 24,100 |
| 7 May 1981 | USD | 12.125 | 12.75 | 11.5 | 12.125 | 404.1667 | -0.5 (-3.96%) | 57,500 |
| 6 May 1981 | USD | 12.625 | 12.875 | 12.5 | 12.625 | 420.8333 | 0.0 (0.0%) | 13,100 |
| 5 May 1981 | USD | 12.625 | 12.625 | 12.375 | 12.625 | 420.8333 | -0.375 (-2.88%) | 17,700 |
| 4 May 1981 | USD | 13 | 13.25 | 12.875 | 13 | 433.3333 | -0.5 (-3.70%) | 13,100 |
| 1 May 1981 | USD | 13.5 | 13.75 | 13.125 | 13.5 | 450 | -0.125 (-0.92%) | 24,100 |
| 30 Apr 1981 | USD | 13.625 | 13.875 | 13.625 | 13.625 | 454.1667 | -0.25 (-1.80%) | 9,200 |
| 29 Apr 1981 | USD | 13.875 | 13.875 | 13.5 | 13.875 | 462.5 | +0.25 (+1.83%) | 5,600 |
| 28 Apr 1981 | USD | 13.625 | 13.875 | 13.5 | 13.625 | 454.1667 | -0.375 (-2.68%) | 18,000 |
| 27 Apr 1981 | USD | 14 | 14.375 | 14 | 14 | 466.6667 | -0.375 (-2.61%) | 14,400 |
| 24 Apr 1981 | USD | 14.375 | 14.375 | 14 | 14.375 | 479.1667 | +0.25 (+1.77%) | 18,600 |
| 23 Apr 1981 | USD | 14.125 | 14.25 | 13.625 | 14.125 | 470.8333 | +0.25 (+1.80%) | 30,800 |
| 22 Apr 1981 | USD | 13.875 | 14 | 13.375 | 13.875 | 462.5 | 0.0 (0.0%) | 13,600 |
| 21 Apr 1981 | USD | 13.875 | 14.25 | 13.75 | 13.875 | 462.5 | -0.25 (-1.77%) | 15,700 |
| 20 Apr 1981 | USD | 14.125 | 14.375 | 13.875 | 14.125 | 470.8333 | -0.5 (-3.42%) | 23,700 |
| 17 Apr 1981 | USD | 14.625 | 14.625 | 14.625 | 14.625 | 487.5 | 0.0 (0.0%) | 0 |
| 16 Apr 1981 | USD | 14.625 | 14.875 | 14.125 | 14.625 | 487.5 | +0.125 (+0.86%) | 27,400 |
| 15 Apr 1981 | USD | 14.5 | 14.75 | 13.625 | 14.5 | 483.3333 | 0.0 (0.0%) | 72,300 |
| 14 Apr 1981 | USD | 14.5 | 14.625 | 14.375 | 14.5 | 483.3333 | 0.0 (0.0%) | 22,800 |
| 13 Apr 1981 | USD | 14.5 | 14.625 | 14.25 | 14.5 | 483.3333 | -0.125 (-0.85%) | 122,900 |
| 10 Apr 1981 | USD | 14.625 | 14.75 | 14.25 | 14.625 | 487.5 | +0.125 (+0.86%) | 32,600 |
