| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 3 Jun 1981 | USD | 18.995 | 18.995 | 18.131 | 18.995 | 1.407 | +0.621 (+3.38%) | 3,400 |
| 2 Jun 1981 | USD | 18.374 | 18.495 | 18.374 | 18.374 | 1.361 | 0.0 (0.0%) | 1,900 |
| 1 Jun 1981 | USD | 18.374 | 18.374 | 18.374 | 18.374 | 1.361 | +0.122 (+0.67%) | 200 |
| 29 May 1981 | USD | 18.252 | 18.495 | 18.252 | 18.252 | 1.352 | -0.243 (-1.31%) | 2,000 |
| 28 May 1981 | USD | 18.495 | 18.495 | 18.495 | 18.495 | 1.37 | +0.121 (+0.66%) | 600 |
| 27 May 1981 | USD | 18.374 | 18.63 | 18.374 | 18.374 | 1.361 | 0.0 (0.0%) | 900 |
| 26 May 1981 | USD | 18.374 | 18.374 | 18.252 | 18.374 | 1.361 | -0.121 (-0.65%) | 1,300 |
| 25 May 1981 | USD | 18.495 | 18.495 | 18.495 | 18.495 | 1.37 | 0.0 (0.0%) | 0 |
| 22 May 1981 | USD | 18.495 | 18.495 | 18.252 | 18.495 | 1.37 | +0.121 (+0.66%) | 600 |
| 21 May 1981 | USD | 18.374 | 18.374 | 18.374 | 18.374 | 1.361 | 0.0 (0.0%) | 0 |
| 20 May 1981 | USD | 18.374 | 18.374 | 18.131 | 18.374 | 1.361 | +0.243 (+1.34%) | 1,100 |
| 19 May 1981 | USD | 18.131 | 18.252 | 17.996 | 18.131 | 1.343 | 0.0 (0.0%) | 1,400 |
| 18 May 1981 | USD | 18.131 | 18.495 | 18.131 | 18.131 | 1.343 | -0.121 (-0.66%) | 600 |
| 15 May 1981 | USD | 18.252 | 18.495 | 18.252 | 18.252 | 1.352 | -0.243 (-1.31%) | 1,700 |
| 14 May 1981 | USD | 18.495 | 18.495 | 18.495 | 18.495 | 1.37 | 0.0 (0.0%) | 0 |
| 13 May 1981 | USD | 18.495 | 18.63 | 18.252 | 18.495 | 1.37 | -0.378 (-2.00%) | 1,600 |
| 12 May 1981 | USD | 18.873 | 18.873 | 17.753 | 18.873 | 1.398 | +0.877 (+4.87%) | 3,100 |
| 11 May 1981 | USD | 17.996 | 17.996 | 17.996 | 17.996 | 1.333 | 0.0 (0.0%) | 800 |
| 8 May 1981 | USD | 17.996 | 17.996 | 17.996 | 17.996 | 1.333 | 0.0 (0.0%) | 400 |
| 7 May 1981 | USD | 17.996 | 17.996 | 17.631 | 17.996 | 1.333 | +0.122 (+0.68%) | 500 |
| 6 May 1981 | USD | 17.874 | 17.874 | 17.874 | 17.874 | 1.324 | +0.243 (+1.38%) | 200 |
| 5 May 1981 | USD | 17.631 | 18.252 | 17.631 | 17.631 | 1.306 | -0.864 (-4.67%) | 1,400 |
| 4 May 1981 | USD | 18.495 | 18.873 | 18.495 | 18.495 | 1.37 | -0.756 (-3.93%) | 800 |
| 1 May 1981 | USD | 19.251 | 19.251 | 19.251 | 19.251 | 1.426 | -0.257 (-1.32%) | 100 |
| 30 Apr 1981 | USD | 19.508 | 19.629 | 19.508 | 19.508 | 1.445 | +0.135 (+0.70%) | 2,400 |
| 29 Apr 1981 | USD | 19.373 | 19.373 | 19.13 | 19.373 | 1.435 | -0.135 (-0.69%) | 1,100 |
| 28 Apr 1981 | USD | 19.508 | 19.508 | 19.251 | 19.508 | 1.445 | +0.378 (+1.98%) | 800 |
| 27 Apr 1981 | USD | 19.13 | 19.13 | 19.13 | 19.13 | 1.417 | -0.243 (-1.25%) | 400 |
| 24 Apr 1981 | USD | 19.373 | 19.373 | 18.995 | 19.373 | 1.435 | +0.243 (+1.27%) | 1,300 |
| 23 Apr 1981 | USD | 19.13 | 19.751 | 19.13 | 19.13 | 1.417 | -0.756 (-3.80%) | 3,100 |
