| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 10 Jun 1981 | USD | 19.128 | 19.128 | 19.128 | 19.128 | 2.391 | 0.0 (0.0%) | 1,500 |
| 9 Jun 1981 | USD | 19.128 | 19.128 | 19.128 | 19.128 | 2.391 | 0.0 (0.0%) | 100 |
| 8 Jun 1981 | USD | 19.128 | 19.376 | 19.128 | 19.128 | 2.391 | -0.248 (-1.28%) | 1,200 |
| 5 Jun 1981 | USD | 19.376 | 19.376 | 19.376 | 19.376 | 2.422 | 0.0 (0.0%) | 0 |
| 4 Jun 1981 | USD | 19.376 | 19.376 | 19.376 | 19.376 | 2.422 | -0.252 (-1.28%) | 200 |
| 3 Jun 1981 | USD | 19.628 | 19.628 | 19.376 | 19.628 | 2.4535 | +0.252 (+1.30%) | 200 |
| 2 Jun 1981 | USD | 19.376 | 19.628 | 19.376 | 19.376 | 2.422 | -0.124 (-0.64%) | 600 |
| 1 Jun 1981 | USD | 19.5 | 19.752 | 19.252 | 19.5 | 2.4375 | -0.252 (-1.28%) | 2,600 |
| 29 May 1981 | USD | 19.752 | 20.5 | 19.752 | 19.752 | 2.469 | -0.5 (-2.47%) | 1,500 |
| 28 May 1981 | USD | 20.252 | 20.752 | 20.252 | 20.252 | 2.5315 | -0.248 (-1.21%) | 3,200 |
| 27 May 1981 | USD | 20.5 | 20.752 | 20.252 | 20.5 | 2.5625 | +0.5 (+2.50%) | 2,100 |
| 26 May 1981 | USD | 20 | 20 | 19.252 | 20 | 2.5 | +0.248 (+1.26%) | 2,500 |
| 25 May 1981 | USD | 19.752 | 19.752 | 19.752 | 19.752 | 2.469 | 0.0 (0.0%) | 0 |
| 22 May 1981 | USD | 19.752 | 20.252 | 19 | 19.752 | 2.469 | 0.0 (0.0%) | 5,200 |
| 21 May 1981 | USD | 19.752 | 19.752 | 19 | 19.752 | 2.469 | +0.752 (+3.96%) | 5,800 |
| 20 May 1981 | USD | 19 | 19.252 | 18.628 | 19 | 2.375 | 0.0 (0.0%) | 2,100 |
| 19 May 1981 | USD | 19 | 19 | 18.128 | 19 | 2.375 | +0.5 (+2.70%) | 3,000 |
| 18 May 1981 | USD | 18.5 | 18.5 | 18.5 | 18.5 | 2.3125 | 0.0 (0.0%) | 800 |
| 15 May 1981 | USD | 18.5 | 18.5 | 18 | 18.5 | 2.3125 | +0.372 (+2.05%) | 5,400 |
| 14 May 1981 | USD | 18.128 | 18.128 | 17.252 | 18.128 | 2.266 | +0.876 (+5.08%) | 2,700 |
| 13 May 1981 | USD | 17.252 | 17.628 | 17.128 | 17.252 | 2.1565 | +0.376 (+2.23%) | 2,200 |
| 12 May 1981 | USD | 16.876 | 16.876 | 16.5 | 16.876 | 2.1095 | +0.624 (+3.84%) | 800 |
| 11 May 1981 | USD | 16.252 | 16.5 | 16.128 | 16.252 | 2.0315 | -0.248 (-1.50%) | 700 |
| 8 May 1981 | USD | 16.5 | 16.5 | 16.252 | 16.5 | 2.0625 | 0.0 (0.0%) | 300 |
| 7 May 1981 | USD | 16.5 | 16.5 | 16.128 | 16.5 | 2.0625 | +0.624 (+3.93%) | 700 |
| 6 May 1981 | USD | 15.876 | 15.876 | 15.876 | 15.876 | 1.9845 | -0.124 (-0.78%) | 500 |
| 5 May 1981 | USD | 16 | 16 | 15.752 | 16 | 2 | 0.0 (0.0%) | 900 |
| 4 May 1981 | USD | 16 | 17.252 | 16 | 16 | 2 | -1.252 (-7.26%) | 5,400 |
| 1 May 1981 | USD | 17.252 | 17.5 | 16.128 | 17.252 | 2.1565 | +1.376 (+8.67%) | 20,900 |
| 30 Apr 1981 | USD | 15.876 | 16 | 15.876 | 15.876 | 1.9845 | +0.124 (+0.79%) | 500 |
