| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 3 Jun 1981 | USD | 17.501 | 17.625 | 17.375 | 17.501 | 5.8337 | 0.0 (0.0%) | 16,200 |
| 2 Jun 1981 | USD | 17.501 | 17.876 | 17.501 | 17.501 | 5.8337 | -0.249 (-1.40%) | 18,200 |
| 1 Jun 1981 | USD | 17.75 | 18 | 17.375 | 17.75 | 5.9167 | -0.625 (-3.40%) | 34,500 |
| 29 May 1981 | USD | 18.375 | 18.5 | 18.251 | 18.375 | 6.125 | +0.124 (+0.68%) | 17,900 |
| 28 May 1981 | USD | 18.251 | 18.375 | 18 | 18.251 | 6.0837 | +0.501 (+2.82%) | 25,300 |
| 27 May 1981 | USD | 17.75 | 18.375 | 17.75 | 17.75 | 5.9167 | -0.75 (-4.05%) | 37,000 |
| 26 May 1981 | USD | 18.5 | 18.5 | 18.251 | 18.5 | 6.1667 | +0.624 (+3.49%) | 65,800 |
| 25 May 1981 | USD | 17.876 | 17.876 | 17.876 | 17.876 | 5.9587 | 0.0 (0.0%) | 0 |
| 22 May 1981 | USD | 17.876 | 18.125 | 17.375 | 17.876 | 5.9587 | +0.375 (+2.14%) | 22,100 |
| 21 May 1981 | USD | 17.501 | 17.876 | 17.375 | 17.501 | 5.8337 | -0.249 (-1.40%) | 23,100 |
| 20 May 1981 | USD | 17.75 | 17.876 | 17.501 | 17.75 | 5.9167 | +0.125 (+0.71%) | 33,600 |
| 19 May 1981 | USD | 17.625 | 18.75 | 17.625 | 17.625 | 5.875 | -0.5 (-2.76%) | 46,900 |
| 18 May 1981 | USD | 18.125 | 18.251 | 17.876 | 18.125 | 6.0417 | 0.0 (0.0%) | 30,100 |
| 15 May 1981 | USD | 18.125 | 18.125 | 17.876 | 18.125 | 6.0417 | +0.125 (+0.69%) | 328,800 |
| 14 May 1981 | USD | 18 | 18 | 17.75 | 18 | 6 | +0.25 (+1.41%) | 48,600 |
| 13 May 1981 | USD | 17.75 | 17.876 | 17.501 | 17.75 | 5.9167 | +0.125 (+0.71%) | 149,100 |
| 12 May 1981 | USD | 17.625 | 17.625 | 17 | 17.625 | 5.875 | +0.25 (+1.44%) | 32,300 |
| 11 May 1981 | USD | 17.375 | 17.501 | 17.126 | 17.375 | 5.7917 | +0.249 (+1.45%) | 42,900 |
| 8 May 1981 | USD | 17.126 | 17.375 | 17.126 | 17.126 | 5.7087 | 0.0 (0.0%) | 487,200 |
| 7 May 1981 | USD | 17.126 | 17.375 | 17.126 | 17.126 | 5.7087 | 0.0 (0.0%) | 23,500 |
| 6 May 1981 | USD | 17.126 | 17.25 | 17.126 | 17.126 | 5.7087 | -0.124 (-0.72%) | 34,500 |
| 5 May 1981 | USD | 17.25 | 17.25 | 17.126 | 17.25 | 5.75 | 0.0 (0.0%) | 31,000 |
| 4 May 1981 | USD | 17.25 | 17.75 | 17.126 | 17.25 | 5.75 | -0.626 (-3.50%) | 190,200 |
| 1 May 1981 | USD | 17.876 | 18 | 17.75 | 17.876 | 5.9587 | -0.124 (-0.69%) | 38,700 |
| 30 Apr 1981 | USD | 18 | 18 | 17.75 | 18 | 6 | +0.25 (+1.41%) | 16,800 |
| 29 Apr 1981 | USD | 17.75 | 18 | 17.75 | 17.75 | 5.9167 | 0.0 (0.0%) | 39,500 |
| 28 Apr 1981 | USD | 17.75 | 18 | 17.75 | 17.75 | 5.9167 | -0.25 (-1.39%) | 26,400 |
| 27 Apr 1981 | USD | 18 | 18 | 17.625 | 18 | 6 | +0.25 (+1.41%) | 60,300 |
| 24 Apr 1981 | USD | 17.75 | 18 | 17.75 | 17.75 | 5.9167 | -0.126 (-0.70%) | 30,200 |
| 23 Apr 1981 | USD | 17.876 | 18.375 | 17.75 | 17.876 | 5.9587 | -0.375 (-2.05%) | 48,500 |
