| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 2 Jun 1981 | USD | 21 | 21.626 | 21 | 21 | 3.4415 | -0.626 (-2.89%) | 26,300 |
| 1 Jun 1981 | USD | 21.626 | 21.75 | 21.25 | 21.626 | 3.5441 | +0.25 (+1.17%) | 33,800 |
| 29 May 1981 | USD | 21.376 | 21.876 | 21.25 | 21.376 | 3.5031 | +0.376 (+1.79%) | 55,500 |
| 28 May 1981 | USD | 21 | 21 | 20 | 21 | 3.4415 | +1.25 (+6.33%) | 22,900 |
| 27 May 1981 | USD | 19.75 | 19.876 | 19.126 | 19.75 | 3.2366 | 0.0 (0.0%) | 8,500 |
| 26 May 1981 | USD | 19.75 | 19.75 | 19.25 | 19.75 | 3.2366 | +0.374 (+1.93%) | 7,100 |
| 25 May 1981 | USD | 19.376 | 19.376 | 19.376 | 19.376 | 3.1754 | 0.0 (0.0%) | 0 |
| 22 May 1981 | USD | 19.376 | 20.126 | 19.376 | 19.376 | 3.1754 | -0.75 (-3.73%) | 6,000 |
| 21 May 1981 | USD | 20.126 | 20.126 | 19.75 | 20.126 | 3.2983 | +0.126 (+0.63%) | 6,600 |
| 20 May 1981 | USD | 20 | 20.126 | 19.75 | 20 | 3.2776 | +0.124 (+0.62%) | 8,000 |
| 19 May 1981 | USD | 19.876 | 20.25 | 19.5 | 19.876 | 3.2573 | -0.374 (-1.85%) | 8,000 |
| 18 May 1981 | USD | 20.25 | 20.25 | 19.25 | 20.25 | 3.3186 | +1.124 (+5.88%) | 12,700 |
| 15 May 1981 | USD | 19.126 | 19.126 | 18.75 | 19.126 | 3.1344 | +0.376 (+2.01%) | 20,900 |
| 14 May 1981 | USD | 18.75 | 18.876 | 18.5 | 18.75 | 3.0728 | -0.126 (-0.67%) | 8,800 |
| 13 May 1981 | USD | 18.876 | 18.876 | 18.5 | 18.876 | 3.0934 | +0.626 (+3.43%) | 15,400 |
| 12 May 1981 | USD | 18.25 | 18.376 | 18 | 18.25 | 2.9908 | -0.5 (-2.67%) | 66,800 |
| 11 May 1981 | USD | 18.75 | 19.75 | 18.626 | 18.75 | 3.0728 | -1 (-5.06%) | 8,600 |
| 8 May 1981 | USD | 19.75 | 19.75 | 19.376 | 19.75 | 3.2366 | +0.624 (+3.26%) | 11,200 |
| 7 May 1981 | USD | 19.126 | 19.25 | 18.5 | 19.126 | 3.1344 | -0.374 (-1.92%) | 16,600 |
| 6 May 1981 | USD | 19.5 | 19.5 | 18.5 | 19.5 | 3.1957 | +0.75 (+4%) | 15,200 |
| 5 May 1981 | USD | 18.75 | 18.876 | 18.5 | 18.75 | 3.0728 | -0.376 (-1.97%) | 7,400 |
| 4 May 1981 | USD | 19.126 | 19.126 | 18.876 | 19.126 | 3.1344 | -0.25 (-1.29%) | 11,400 |
| 1 May 1981 | USD | 19.376 | 19.876 | 19.376 | 19.376 | 3.1754 | -0.374 (-1.89%) | 6,300 |
| 30 Apr 1981 | USD | 19.75 | 19.876 | 19.626 | 19.75 | 3.2366 | -0.25 (-1.25%) | 6,800 |
| 29 Apr 1981 | USD | 20 | 20.25 | 20 | 20 | 3.2776 | -0.5 (-2.44%) | 3,200 |
| 28 Apr 1981 | USD | 20.5 | 20.626 | 20.126 | 20.5 | 3.3596 | -0.25 (-1.20%) | 11,900 |
| 27 Apr 1981 | USD | 20.75 | 20.75 | 20.626 | 20.75 | 3.4005 | +0.25 (+1.22%) | 16,200 |
| 24 Apr 1981 | USD | 20.5 | 20.5 | 19.876 | 20.5 | 3.3596 | +1 (+5.13%) | 23,500 |
| 23 Apr 1981 | USD | 19.5 | 20.5 | 19.5 | 19.5 | 3.1957 | -0.376 (-1.89%) | 201,800 |
| 22 Apr 1981 | USD | 19.876 | 20.376 | 19.5 | 19.876 | 3.2573 | -0.624 (-3.04%) | 96,000 |
