| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 28 Apr 1981 | USD | 20.25 | 20.375 | 20 | 20.25 | 5.0625 | +0.25 (+1.25%) | 4,000 |
| 27 Apr 1981 | USD | 20 | 20.375 | 20 | 20 | 5 | -0.375 (-1.84%) | 800 |
| 24 Apr 1981 | USD | 20.375 | 20.375 | 20.25 | 20.375 | 5.0938 | +0.375 (+1.88%) | 1,300 |
| 23 Apr 1981 | USD | 20 | 20.25 | 19.875 | 20 | 5 | 0.0 (0.0%) | 7,800 |
| 22 Apr 1981 | USD | 20 | 20 | 20 | 20 | 5 | 0.0 (0.0%) | 700 |
| 21 Apr 1981 | USD | 20 | 20.125 | 20 | 20 | 5 | -0.125 (-0.62%) | 1,700 |
| 20 Apr 1981 | USD | 20.125 | 20.125 | 20 | 20.125 | 5.0312 | +0.125 (+0.63%) | 200 |
| 17 Apr 1981 | USD | 20 | 20 | 20 | 20 | 5 | 0.0 (0.0%) | 0 |
| 16 Apr 1981 | USD | 20 | 20.375 | 20 | 20 | 5 | -0.25 (-1.23%) | 1,000 |
| 15 Apr 1981 | USD | 20.25 | 20.5 | 20.125 | 20.25 | 5.0625 | 0.0 (0.0%) | 2,000 |
| 14 Apr 1981 | USD | 20.25 | 20.25 | 20.25 | 20.25 | 5.0625 | 0.0 (0.0%) | 800 |
| 13 Apr 1981 | USD | 20.25 | 20.25 | 20.25 | 20.25 | 5.0625 | +0.125 (+0.62%) | 800 |
| 10 Apr 1981 | USD | 20.125 | 20.125 | 19.75 | 20.125 | 5.0312 | +0.375 (+1.90%) | 1,900 |
| 9 Apr 1981 | USD | 19.75 | 19.75 | 19.75 | 19.75 | 4.9375 | 0.0 (0.0%) | 700 |
| 8 Apr 1981 | USD | 19.75 | 19.875 | 19.625 | 19.75 | 4.9375 | 0.0 (0.0%) | 2,700 |
| 7 Apr 1981 | USD | 19.75 | 19.875 | 19.625 | 19.75 | 4.9375 | -0.125 (-0.63%) | 2,700 |
| 6 Apr 1981 | USD | 19.875 | 19.875 | 19.625 | 19.875 | 4.9688 | -0.125 (-0.63%) | 1,600 |
| 3 Apr 1981 | USD | 20 | 20 | 19.875 | 20 | 5 | -0.125 (-0.62%) | 5,600 |
| 2 Apr 1981 | USD | 20.125 | 20.125 | 19 | 20.125 | 5.0312 | +1.25 (+6.62%) | 3,100 |
| 1 Apr 1981 | USD | 18.875 | 18.875 | 18.625 | 18.875 | 4.7188 | +0.125 (+0.67%) | 1,800 |
| 31 Mar 1981 | USD | 18.75 | 18.75 | 18.625 | 18.75 | 4.6875 | +0.125 (+0.67%) | 700 |
| 30 Mar 1981 | USD | 18.625 | 18.625 | 18.625 | 18.625 | 4.6562 | +0.125 (+0.68%) | 200 |
| 27 Mar 1981 | USD | 18.5 | 18.5 | 18.5 | 18.5 | 4.625 | 0.0 (0.0%) | 600 |
| 26 Mar 1981 | USD | 18.5 | 18.75 | 18.5 | 18.5 | 4.625 | +0.25 (+1.37%) | 3,700 |
| 25 Mar 1981 | USD | 18.25 | 18.25 | 18.25 | 18.25 | 4.5625 | +0.125 (+0.69%) | 100 |
| 24 Mar 1981 | USD | 18.125 | 18.125 | 18.125 | 18.125 | 4.5312 | +0.125 (+0.69%) | 1,100 |
| 23 Mar 1981 | USD | 18 | 18.25 | 18 | 18 | 4.5 | -0.125 (-0.69%) | 1,500 |
| 20 Mar 1981 | USD | 18.125 | 18.125 | 18 | 18.125 | 4.5312 | +0.125 (+0.69%) | 1,600 |
| 19 Mar 1981 | USD | 18 | 18.25 | 17.875 | 18 | 4.5 | -0.375 (-2.04%) | 6,800 |
| 18 Mar 1981 | USD | 18.375 | 18.625 | 18.375 | 18.375 | 4.5938 | -0.125 (-0.68%) | 2,100 |
