| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 22 Apr 1981 | USD | 17.875 | 17.875 | 17.5 | 17.875 | 17.875 | +0.25 (+1.42%) | 81,700 |
| 21 Apr 1981 | USD | 17.625 | 17.75 | 17.5 | 17.625 | 17.625 | +0.125 (+0.71%) | 127,000 |
| 20 Apr 1981 | USD | 17.5 | 17.625 | 17.375 | 17.5 | 17.5 | -0.625 (-3.45%) | 150,500 |
| 17 Apr 1981 | USD | 18.125 | 18.125 | 18.125 | 18.125 | 18.125 | 0.0 (0.0%) | 0 |
| 16 Apr 1981 | USD | 18.125 | 18.375 | 17.875 | 18.125 | 18.125 | +0.125 (+0.69%) | 48,100 |
| 15 Apr 1981 | USD | 18 | 18 | 17.375 | 18 | 18 | +0.625 (+3.60%) | 37,900 |
| 14 Apr 1981 | USD | 17.375 | 17.5 | 17.375 | 17.375 | 17.375 | 0.0 (0.0%) | 30,900 |
| 13 Apr 1981 | USD | 17.375 | 17.375 | 17.25 | 17.375 | 17.375 | +0.125 (+0.72%) | 80,900 |
| 10 Apr 1981 | USD | 17.25 | 17.375 | 17.25 | 17.25 | 17.25 | 0.0 (0.0%) | 74,000 |
| 9 Apr 1981 | USD | 17.25 | 17.375 | 17.125 | 17.25 | 17.25 | -0.125 (-0.72%) | 32,900 |
| 8 Apr 1981 | USD | 17.375 | 17.5 | 17.25 | 17.375 | 17.375 | -0.125 (-0.71%) | 162,200 |
| 7 Apr 1981 | USD | 17.5 | 17.5 | 17.125 | 17.5 | 17.5 | +0.375 (+2.19%) | 46,600 |
| 6 Apr 1981 | USD | 17.125 | 17.25 | 17 | 17.125 | 17.125 | 0.0 (0.0%) | 25,900 |
| 3 Apr 1981 | USD | 17.125 | 17.25 | 17.125 | 17.125 | 17.125 | 0.0 (0.0%) | 28,400 |
| 2 Apr 1981 | USD | 17.125 | 17.25 | 17 | 17.125 | 17.125 | 0.0 (0.0%) | 22,200 |
| 1 Apr 1981 | USD | 17.125 | 17.25 | 17 | 17.125 | 17.125 | 0.0 (0.0%) | 22,300 |
| 31 Mar 1981 | USD | 17.125 | 17.25 | 17 | 17.125 | 17.125 | 0.0 (0.0%) | 50,200 |
| 30 Mar 1981 | USD | 17.125 | 17.25 | 17.125 | 17.125 | 17.125 | -0.125 (-0.72%) | 28,500 |
| 27 Mar 1981 | USD | 17.25 | 17.375 | 17 | 17.25 | 17.25 | 0.0 (0.0%) | 25,700 |
| 26 Mar 1981 | USD | 17.25 | 17.5 | 17 | 17.25 | 17.25 | -0.125 (-0.72%) | 24,100 |
| 25 Mar 1981 | USD | 17.375 | 17.375 | 17.25 | 17.375 | 17.375 | 0.0 (0.0%) | 13,600 |
| 24 Mar 1981 | USD | 17.375 | 17.875 | 17.25 | 17.375 | 17.375 | -0.25 (-1.42%) | 75,300 |
| 23 Mar 1981 | USD | 17.625 | 17.875 | 17.625 | 17.625 | 17.625 | 0.0 (0.0%) | 47,000 |
| 20 Mar 1981 | USD | 17.625 | 17.875 | 17.625 | 17.625 | 17.625 | +0.125 (+0.71%) | 103,300 |
| 19 Mar 1981 | USD | 17.5 | 17.75 | 17.375 | 17.5 | 17.5 | -0.125 (-0.71%) | 53,900 |
| 18 Mar 1981 | USD | 17.625 | 17.75 | 17.5 | 17.625 | 17.625 | 0.0 (0.0%) | 21,500 |
| 17 Mar 1981 | USD | 17.625 | 17.875 | 17.5 | 17.625 | 17.625 | 0.0 (0.0%) | 60,000 |
| 16 Mar 1981 | USD | 17.625 | 17.75 | 17.5 | 17.625 | 17.625 | +0.125 (+0.71%) | 27,600 |
| 13 Mar 1981 | USD | 17.5 | 17.75 | 17.5 | 17.5 | 17.5 | 0.0 (0.0%) | 20,100 |
| 12 Mar 1981 | USD | 17.5 | 17.5 | 17.25 | 17.5 | 17.5 | +0.25 (+1.45%) | 39,200 |
