| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 29 May 1981 | USD | 27.252 | 28 | 27.252 | 27.252 | 0.2839 | +0.5 (+1.87%) | 2,800 |
| 28 May 1981 | USD | 26.752 | 27.252 | 26.752 | 26.752 | 0.2787 | +0.5 (+1.90%) | 8,200 |
| 27 May 1981 | USD | 26.252 | 27 | 26.252 | 26.252 | 0.2735 | +0.252 (+0.97%) | 3,100 |
| 26 May 1981 | USD | 26 | 26.752 | 26 | 26 | 0.2708 | 0.0 (0.0%) | 2,800 |
| 25 May 1981 | USD | 26 | 26 | 26 | 26 | 0.2708 | 0.0 (0.0%) | 0 |
| 22 May 1981 | USD | 26 | 26.5 | 26 | 26 | 0.2708 | 0.0 (0.0%) | 5,200 |
| 21 May 1981 | USD | 26 | 26.752 | 26 | 26 | 0.2708 | -0.5 (-1.89%) | 6,700 |
| 20 May 1981 | USD | 26.5 | 27.252 | 26.5 | 26.5 | 0.276 | 0.0 (0.0%) | 3,600 |
| 19 May 1981 | USD | 26.5 | 27.252 | 26.5 | 26.5 | 0.276 | 0.0 (0.0%) | 3,000 |
| 18 May 1981 | USD | 26.5 | 27.252 | 26.5 | 26.5 | 0.276 | +0.248 (+0.94%) | 6,300 |
| 15 May 1981 | USD | 26.252 | 27 | 26.252 | 26.252 | 0.2735 | +0.252 (+0.97%) | 7,800 |
| 14 May 1981 | USD | 26 | 26.5 | 26 | 26 | 0.2708 | +0.5 (+1.96%) | 3,900 |
| 13 May 1981 | USD | 25.5 | 26.252 | 25.5 | 25.5 | 0.2656 | +0.248 (+0.98%) | 15,600 |
| 12 May 1981 | USD | 25.252 | 26 | 25.252 | 25.252 | 0.263 | +0.752 (+3.07%) | 12,300 |
| 11 May 1981 | USD | 24.5 | 25 | 24.5 | 24.5 | 0.2552 | +0.248 (+1.02%) | 6,000 |
| 8 May 1981 | USD | 24.252 | 24.752 | 24.252 | 24.252 | 0.2526 | +0.252 (+1.05%) | 5,800 |
| 7 May 1981 | USD | 24 | 24.5 | 24 | 24 | 0.25 | +0.248 (+1.04%) | 4,200 |
| 6 May 1981 | USD | 23.752 | 24.5 | 23.752 | 23.752 | 0.2474 | 0.0 (0.0%) | 8,100 |
| 5 May 1981 | USD | 23.752 | 24.252 | 23.752 | 23.752 | 0.2474 | -0.248 (-1.03%) | 10,600 |
| 4 May 1981 | USD | 24 | 24.752 | 24 | 24 | 0.25 | -0.252 (-1.04%) | 6,400 |
| 1 May 1981 | USD | 24.252 | 24.5 | 24.252 | 24.252 | 0.2526 | +0.252 (+1.05%) | 14,200 |
| 30 Apr 1981 | USD | 24 | 24.5 | 24 | 24 | 0.25 | +0.248 (+1.04%) | 19,500 |
| 29 Apr 1981 | USD | 23.752 | 24.252 | 23.752 | 23.752 | 0.2474 | -0.748 (-3.05%) | 46,700 |
| 28 Apr 1981 | USD | 24.5 | 24.752 | 24.5 | 24.5 | 0.2552 | +0.748 (+3.15%) | 39,500 |
| 27 Apr 1981 | USD | 23.752 | 24.252 | 23.752 | 23.752 | 0.2474 | +2 (+9.19%) | 50,100 |
| 24 Apr 1981 | USD | 21.752 | 22.5 | 21.752 | 21.752 | 0.2266 | 0.0 (0.0%) | 21,900 |
| 23 Apr 1981 | USD | 21.752 | 22.252 | 21.752 | 21.752 | 0.2266 | -0.248 (-1.13%) | 12,500 |
| 22 Apr 1981 | USD | 22 | 22.5 | 22 | 22 | 0.2292 | 0.0 (0.0%) | 17,000 |
| 21 Apr 1981 | USD | 22 | 22.752 | 22 | 22 | 0.2292 | -0.752 (-3.31%) | 15,900 |
| 20 Apr 1981 | USD | 22.752 | 23.5 | 22.752 | 22.752 | 0.237 | +0.752 (+3.42%) | 12,000 |
