| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 27 May 1981 | USD | 10.5 | 10.625 | 10.5 | 10.5 | 10.5 | -0.125 (-1.18%) | 10,200 |
| 26 May 1981 | USD | 10.625 | 10.75 | 10.625 | 10.625 | 10.625 | 0.0 (0.0%) | 10,000 |
| 25 May 1981 | USD | 10.625 | 10.625 | 10.625 | 10.625 | 10.625 | 0.0 (0.0%) | 0 |
| 22 May 1981 | USD | 10.625 | 10.75 | 10.625 | 10.625 | 10.625 | +0.125 (+1.19%) | 14,700 |
| 21 May 1981 | USD | 10.5 | 10.625 | 10.5 | 10.5 | 10.5 | 0.0 (0.0%) | 12,700 |
| 20 May 1981 | USD | 10.5 | 10.625 | 10.5 | 10.5 | 10.5 | 0.0 (0.0%) | 9,500 |
| 19 May 1981 | USD | 10.5 | 10.625 | 10.5 | 10.5 | 10.5 | 0.0 (0.0%) | 10,800 |
| 18 May 1981 | USD | 10.5 | 10.75 | 10.5 | 10.5 | 10.5 | -0.125 (-1.18%) | 6,500 |
| 15 May 1981 | USD | 10.625 | 10.875 | 10.625 | 10.625 | 10.625 | -0.125 (-1.16%) | 8,300 |
| 14 May 1981 | USD | 10.75 | 11 | 10.75 | 10.75 | 10.75 | 0.0 (0.0%) | 5,400 |
| 13 May 1981 | USD | 10.75 | 10.875 | 10.75 | 10.75 | 10.75 | -0.125 (-1.15%) | 4,000 |
| 12 May 1981 | USD | 10.875 | 11 | 10.875 | 10.875 | 10.875 | +0.125 (+1.16%) | 5,300 |
| 11 May 1981 | USD | 10.75 | 10.875 | 10.75 | 10.75 | 10.75 | 0.0 (0.0%) | 10,300 |
| 8 May 1981 | USD | 10.75 | 10.875 | 10.75 | 10.75 | 10.75 | +0.125 (+1.18%) | 6,700 |
| 7 May 1981 | USD | 10.625 | 10.875 | 10.625 | 10.625 | 10.625 | -0.125 (-1.16%) | 13,100 |
| 6 May 1981 | USD | 10.75 | 10.875 | 10.75 | 10.75 | 10.75 | +0.125 (+1.18%) | 12,300 |
| 5 May 1981 | USD | 10.625 | 10.875 | 10.625 | 10.625 | 10.625 | -0.25 (-2.30%) | 7,800 |
| 4 May 1981 | USD | 10.875 | 11 | 10.875 | 10.875 | 10.875 | -0.25 (-2.25%) | 7,100 |
| 1 May 1981 | USD | 11.125 | 11.25 | 11.125 | 11.125 | 11.125 | 0.0 (0.0%) | 7,400 |
| 30 Apr 1981 | USD | 11.125 | 11.25 | 11.125 | 11.125 | 11.125 | +0.25 (+2.30%) | 8,100 |
| 29 Apr 1981 | USD | 10.875 | 11.125 | 10.875 | 10.875 | 10.875 | -0.125 (-1.14%) | 4,800 |
| 28 Apr 1981 | USD | 11 | 11.125 | 11 | 11 | 11 | +0.125 (+1.15%) | 6,800 |
| 27 Apr 1981 | USD | 10.875 | 11.125 | 10.875 | 10.875 | 10.875 | 0.0 (0.0%) | 6,700 |
| 24 Apr 1981 | USD | 10.875 | 11.125 | 10.875 | 10.875 | 10.875 | -0.25 (-2.25%) | 15,100 |
| 23 Apr 1981 | USD | 11.125 | 11.25 | 11.125 | 11.125 | 11.125 | 0.0 (0.0%) | 16,700 |
| 22 Apr 1981 | USD | 11.125 | 11.25 | 11.125 | 11.125 | 11.125 | 0.0 (0.0%) | 13,600 |
| 21 Apr 1981 | USD | 11.125 | 11.25 | 11.125 | 11.125 | 11.125 | +0.125 (+1.14%) | 13,100 |
| 20 Apr 1981 | USD | 11 | 11.125 | 11 | 11 | 11 | 0.0 (0.0%) | 10,300 |
| 17 Apr 1981 | USD | 11 | 11 | 11 | 11 | 11 | 0.0 (0.0%) | 0 |
| 16 Apr 1981 | USD | 11 | 11.125 | 11 | 11 | 11 | +0.5 (+4.76%) | 18,100 |
