| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 23 Apr 1981 | USD | 17 | 17.125 | 17 | 17 | 4.25 | +0.125 (+0.74%) | 37,100 |
| 22 Apr 1981 | USD | 16.875 | 17.125 | 16.875 | 16.875 | 4.2188 | -0.5 (-2.88%) | 16,900 |
| 21 Apr 1981 | USD | 17.375 | 17.5 | 17.375 | 17.375 | 4.3438 | +0.125 (+0.72%) | 32,700 |
| 20 Apr 1981 | USD | 17.25 | 17.375 | 17.25 | 17.25 | 4.3125 | -0.875 (-4.83%) | 32,000 |
| 17 Apr 1981 | USD | 18.125 | 18.125 | 18.125 | 18.125 | 4.5312 | 0.0 (0.0%) | 0 |
| 16 Apr 1981 | USD | 18.125 | 18.25 | 18.125 | 18.125 | 4.5312 | 0.0 (0.0%) | 28,600 |
| 15 Apr 1981 | USD | 18.125 | 18.5 | 18.125 | 18.125 | 4.5312 | -0.75 (-3.97%) | 25,000 |
| 14 Apr 1981 | USD | 18.875 | 19.125 | 18.875 | 18.875 | 4.7188 | -0.375 (-1.95%) | 25,200 |
| 13 Apr 1981 | USD | 19.25 | 19.375 | 19.25 | 19.25 | 4.8125 | 0.0 (0.0%) | 33,600 |
| 10 Apr 1981 | USD | 19.25 | 19.5 | 19.25 | 19.25 | 4.8125 | 0.0 (0.0%) | 115,500 |
| 9 Apr 1981 | USD | 19.25 | 19.5 | 19.25 | 19.25 | 4.8125 | +0.375 (+1.99%) | 97,400 |
| 8 Apr 1981 | USD | 18.875 | 19 | 18.875 | 18.875 | 4.7188 | -0.25 (-1.31%) | 16,300 |
| 7 Apr 1981 | USD | 19.125 | 19.25 | 19.125 | 19.125 | 4.7812 | -0.25 (-1.29%) | 34,500 |
| 6 Apr 1981 | USD | 19.375 | 19.5 | 19.375 | 19.375 | 4.8438 | 0.0 (0.0%) | 21,000 |
| 3 Apr 1981 | USD | 19.375 | 19.625 | 19.375 | 19.375 | 4.8438 | -0.125 (-0.64%) | 23,700 |
| 2 Apr 1981 | USD | 19.5 | 19.625 | 19.5 | 19.5 | 4.875 | +0.5 (+2.63%) | 55,400 |
| 1 Apr 1981 | USD | 19 | 19.25 | 19 | 19 | 4.75 | +0.375 (+2.01%) | 58,700 |
| 31 Mar 1981 | USD | 18.625 | 18.75 | 18.625 | 18.625 | 4.6562 | +0.25 (+1.36%) | 41,500 |
| 30 Mar 1981 | USD | 18.375 | 18.5 | 18.375 | 18.375 | 4.5938 | +0.625 (+3.52%) | 39,600 |
| 27 Mar 1981 | USD | 17.75 | 18 | 17.75 | 17.75 | 4.4375 | -0.25 (-1.39%) | 153,900 |
| 26 Mar 1981 | USD | 18 | 18.25 | 18 | 18 | 4.5 | -0.375 (-2.04%) | 96,700 |
| 25 Mar 1981 | USD | 18.375 | 18.5 | 18.375 | 18.375 | 4.5938 | +2.25 (+13.95%) | 82,400 |
| 24 Mar 1981 | USD | 16.125 | 16.375 | 16.125 | 16.125 | 4.0312 | -0.125 (-0.77%) | 42,000 |
| 23 Mar 1981 | USD | 16.25 | 16.5 | 16.25 | 16.25 | 4.0625 | -0.125 (-0.76%) | 51,600 |
| 20 Mar 1981 | USD | 16.375 | 16.5 | 16.375 | 16.375 | 4.0938 | -0.125 (-0.76%) | 53,800 |
| 19 Mar 1981 | USD | 16.5 | 16.75 | 16.5 | 16.5 | 4.125 | -0.875 (-5.04%) | 25,900 |
| 18 Mar 1981 | USD | 17.375 | 17.625 | 17.375 | 17.375 | 4.3438 | -0.25 (-1.42%) | 26,000 |
| 17 Mar 1981 | USD | 17.625 | 17.875 | 17.625 | 17.625 | 4.4062 | -0.25 (-1.40%) | 39,600 |
| 16 Mar 1981 | USD | 17.875 | 18 | 17.875 | 17.875 | 4.4688 | +0.125 (+0.70%) | 18,300 |
| 13 Mar 1981 | USD | 17.75 | 18 | 17.75 | 17.75 | 4.4375 | -0.125 (-0.70%) | 24,800 |
