| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 29 May 1981 | USD | 32.5 | 33 | 32.5 | 32.5 | 0.2539 | +0.5 (+1.56%) | 37,400 |
| 28 May 1981 | USD | 32 | 32.5 | 32 | 32 | 0.25 | +3.248 (+11.30%) | 41,400 |
| 27 May 1981 | USD | 28.752 | 29.252 | 28.752 | 28.752 | 0.2246 | +1.252 (+4.55%) | 31,800 |
| 26 May 1981 | USD | 27.5 | 27.752 | 27.5 | 27.5 | 0.2148 | +0.248 (+0.91%) | 49,300 |
| 25 May 1981 | USD | 27.252 | 27.252 | 27.252 | 27.252 | 0.2129 | 0.0 (0.0%) | 0 |
| 22 May 1981 | USD | 27.252 | 27.752 | 27.252 | 27.252 | 0.2129 | -0.248 (-0.90%) | 13,100 |
| 21 May 1981 | USD | 27.5 | 27.752 | 27.5 | 27.5 | 0.2148 | 0.0 (0.0%) | 19,400 |
| 20 May 1981 | USD | 27.5 | 28 | 27.5 | 27.5 | 0.2148 | 0.0 (0.0%) | 21,000 |
| 19 May 1981 | USD | 27.5 | 28 | 27.5 | 27.5 | 0.2148 | -0.5 (-1.79%) | 24,500 |
| 18 May 1981 | USD | 28 | 28.252 | 28 | 28 | 0.2188 | -0.5 (-1.75%) | 32,400 |
| 15 May 1981 | USD | 28.5 | 28.752 | 28.5 | 28.5 | 0.2227 | +0.5 (+1.79%) | 24,000 |
| 14 May 1981 | USD | 28 | 28.5 | 28 | 28 | 0.2188 | +0.248 (+0.89%) | 14,000 |
| 13 May 1981 | USD | 27.752 | 28.252 | 27.752 | 27.752 | 0.2168 | +0.252 (+0.92%) | 26,800 |
| 12 May 1981 | USD | 27.5 | 27.752 | 27.5 | 27.5 | 0.2148 | 0.0 (0.0%) | 12,500 |
| 11 May 1981 | USD | 27.5 | 27.752 | 27.5 | 27.5 | 0.2148 | -1 (-3.51%) | 29,600 |
| 8 May 1981 | USD | 28.5 | 28.752 | 28.5 | 28.5 | 0.2227 | +0.248 (+0.88%) | 20,100 |
| 7 May 1981 | USD | 28.252 | 28.5 | 28.252 | 28.252 | 0.2207 | +1.5 (+5.61%) | 51,400 |
| 6 May 1981 | USD | 26.752 | 27 | 26.752 | 26.752 | 0.209 | -0.5 (-1.83%) | 21,400 |
| 5 May 1981 | USD | 27.252 | 27.752 | 27.252 | 27.252 | 0.2129 | +0.752 (+2.84%) | 27,100 |
| 4 May 1981 | USD | 26.5 | 26.752 | 26.5 | 26.5 | 0.207 | -1 (-3.64%) | 19,200 |
| 1 May 1981 | USD | 27.5 | 28 | 27.5 | 27.5 | 0.2148 | -0.5 (-1.79%) | 42,200 |
| 30 Apr 1981 | USD | 28 | 28.5 | 28 | 28 | 0.2188 | +1.248 (+4.67%) | 35,100 |
| 29 Apr 1981 | USD | 26.752 | 27 | 26.752 | 26.752 | 0.209 | +0.5 (+1.90%) | 24,800 |
| 28 Apr 1981 | USD | 26.252 | 26.5 | 26.252 | 26.252 | 0.2051 | -0.748 (-2.77%) | 22,600 |
| 27 Apr 1981 | USD | 27 | 27.252 | 27 | 27 | 0.2109 | +0.248 (+0.93%) | 20,500 |
| 24 Apr 1981 | USD | 26.752 | 27 | 26.752 | 26.752 | 0.209 | +1 (+3.88%) | 23,700 |
| 23 Apr 1981 | USD | 25.752 | 26.252 | 25.752 | 25.752 | 0.2012 | +0.252 (+0.99%) | 33,900 |
| 22 Apr 1981 | USD | 25.5 | 25.752 | 25.5 | 25.5 | 0.1992 | +0.748 (+3.02%) | 37,300 |
| 21 Apr 1981 | USD | 24.752 | 25 | 24.752 | 24.752 | 0.1934 | +0.252 (+1.03%) | 26,700 |
| 20 Apr 1981 | USD | 24.5 | 24.752 | 24.5 | 24.5 | 0.1914 | 0.0 (0.0%) | 30,700 |
