| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 14 May 1981 | USD | 2.563 | 2.625 | 2.563 | 2.563 | 7,689 | -0.187 (-6.80%) | 79,400 |
| 13 May 1981 | USD | 2.75 | 2.813 | 2.75 | 2.75 | 8,250 | 0.0 (0.0%) | 97,200 |
| 12 May 1981 | USD | 2.75 | 2.813 | 2.75 | 2.75 | 8,250 | +0.125 (+4.76%) | 91,900 |
| 11 May 1981 | USD | 2.625 | 2.75 | 2.625 | 2.625 | 7,875 | +0.062 (+2.42%) | 109,100 |
| 8 May 1981 | USD | 2.563 | 2.688 | 2.563 | 2.563 | 7,689 | +0.125 (+5.13%) | 99,400 |
| 7 May 1981 | USD | 2.438 | 2.5 | 2.438 | 2.438 | 7,314 | +0.313 (+14.73%) | 143,800 |
| 6 May 1981 | USD | 2.125 | 2.188 | 2.125 | 2.125 | 6,375 | 0.0 (0.0%) | 24,700 |
| 5 May 1981 | USD | 2.125 | 2.188 | 2.125 | 2.125 | 6,375 | 0.0 (0.0%) | 35,900 |
| 4 May 1981 | USD | 2.125 | 2.188 | 2.125 | 2.125 | 6,375 | -0.063 (-2.88%) | 40,100 |
| 1 May 1981 | USD | 2.188 | 2.25 | 2.188 | 2.188 | 6,564 | +0.063 (+2.96%) | 51,700 |
| 30 Apr 1981 | USD | 2.125 | 2.188 | 2.125 | 2.125 | 6,375 | +0.125 (+6.25%) | 36,200 |
| 29 Apr 1981 | USD | 2 | 2.125 | 2 | 2 | 6,000 | -0.125 (-5.88%) | 35,500 |
| 28 Apr 1981 | USD | 2.125 | 2.188 | 2.125 | 2.125 | 6,375 | -0.125 (-5.56%) | 59,300 |
| 27 Apr 1981 | USD | 2.25 | 2.313 | 2.25 | 2.25 | 6,750 | -0.063 (-2.72%) | 54,200 |
| 24 Apr 1981 | USD | 2.313 | 2.438 | 2.313 | 2.313 | 6,939 | -0.062 (-2.61%) | 41,800 |
| 23 Apr 1981 | USD | 2.375 | 2.438 | 2.375 | 2.375 | 7,125 | +0.062 (+2.68%) | 44,300 |
| 22 Apr 1981 | USD | 2.313 | 2.438 | 2.313 | 2.313 | 6,939 | -0.187 (-7.48%) | 93,300 |
| 21 Apr 1981 | USD | 2.5 | 2.625 | 2.5 | 2.5 | 7,500 | -0.188 (-6.99%) | 72,700 |
| 20 Apr 1981 | USD | 2.688 | 2.75 | 2.688 | 2.688 | 8,064 | 0.0 (0.0%) | 72,000 |
| 17 Apr 1981 | USD | 2.688 | 2.688 | 2.688 | 2.688 | 8,064 | 0.0 (0.0%) | 0 |
| 16 Apr 1981 | USD | 2.688 | 2.75 | 2.688 | 2.688 | 8,064 | +0.063 (+2.40%) | 75,800 |
| 15 Apr 1981 | USD | 2.625 | 2.75 | 2.625 | 2.625 | 7,875 | +0.062 (+2.42%) | 89,200 |
| 14 Apr 1981 | USD | 2.563 | 2.688 | 2.563 | 2.563 | 7,689 | -0.187 (-6.80%) | 222,900 |
| 13 Apr 1981 | USD | 2.75 | 2.813 | 2.75 | 2.75 | 8,250 | +0.25 (+10%) | 131,100 |
| 10 Apr 1981 | USD | 2.5 | 2.625 | 2.5 | 2.5 | 7,500 | +0.062 (+2.54%) | 104,100 |
| 9 Apr 1981 | USD | 2.438 | 2.5 | 2.438 | 2.438 | 7,314 | +0.063 (+2.65%) | 184,000 |
| 8 Apr 1981 | USD | 2.375 | 2.5 | 2.375 | 2.375 | 7,125 | +0.062 (+2.68%) | 142,100 |
| 7 Apr 1981 | USD | 2.313 | 2.438 | 2.313 | 2.313 | 6,939 | +0.125 (+5.71%) | 77,800 |
| 6 Apr 1981 | USD | 2.188 | 2.313 | 2.188 | 2.188 | 6,564 | +0.063 (+2.96%) | 90,400 |
| 3 Apr 1981 | USD | 2.125 | 2.188 | 2.125 | 2.125 | 6,375 | -0.063 (-2.88%) | 58,600 |
