| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 10 Jun 1981 | USD | 21.5 | 21.75 | 21 | 21.5 | 7.1667 | +0.125 (+0.58%) | 37,800 |
| 9 Jun 1981 | USD | 21.375 | 21.875 | 21.25 | 21.375 | 7.125 | 0.0 (0.0%) | 44,700 |
| 8 Jun 1981 | USD | 21.375 | 21.75 | 21.375 | 21.375 | 7.125 | -0.5 (-2.29%) | 68,300 |
| 5 Jun 1981 | USD | 21.875 | 21.875 | 20.625 | 21.875 | 7.2917 | +0.875 (+4.17%) | 22,900 |
| 4 Jun 1981 | USD | 21 | 21.125 | 20.25 | 21 | 7 | +0.125 (+0.60%) | 215,300 |
| 3 Jun 1981 | USD | 20.875 | 21.25 | 20.5 | 20.875 | 6.9583 | -0.375 (-1.76%) | 72,300 |
| 2 Jun 1981 | USD | 21.25 | 21.625 | 21.25 | 21.25 | 7.0833 | -0.25 (-1.16%) | 49,300 |
| 1 Jun 1981 | USD | 21.5 | 21.875 | 21.5 | 21.5 | 7.1667 | 0.0 (0.0%) | 13,200 |
| 29 May 1981 | USD | 21.5 | 21.875 | 21.25 | 21.5 | 7.1667 | +0.375 (+1.78%) | 51,000 |
| 28 May 1981 | USD | 21.125 | 22 | 21.125 | 21.125 | 7.0417 | -1 (-4.52%) | 37,900 |
| 27 May 1981 | USD | 22.125 | 22.125 | 21.625 | 22.125 | 7.375 | +0.625 (+2.91%) | 37,400 |
| 26 May 1981 | USD | 21.5 | 21.5 | 20.875 | 21.5 | 7.1667 | +0.375 (+1.78%) | 25,900 |
| 25 May 1981 | USD | 21.125 | 21.125 | 21.125 | 21.125 | 7.0417 | 0.0 (0.0%) | 0 |
| 22 May 1981 | USD | 21.125 | 21.125 | 20.25 | 21.125 | 7.0417 | +0.75 (+3.68%) | 32,500 |
| 21 May 1981 | USD | 20.375 | 20.5 | 20 | 20.375 | 6.7917 | +0.5 (+2.52%) | 42,700 |
| 20 May 1981 | USD | 19.875 | 20.125 | 19.875 | 19.875 | 6.625 | 0.0 (0.0%) | 57,000 |
| 19 May 1981 | USD | 19.875 | 20.375 | 19.875 | 19.875 | 6.625 | -0.125 (-0.63%) | 78,100 |
| 18 May 1981 | USD | 20 | 20.375 | 20 | 20 | 6.6667 | 0.0 (0.0%) | 68,400 |
| 15 May 1981 | USD | 20 | 20.375 | 19.875 | 20 | 6.6667 | 0.0 (0.0%) | 58,600 |
| 14 May 1981 | USD | 20 | 20.75 | 20 | 20 | 6.6667 | -0.375 (-1.84%) | 89,100 |
| 13 May 1981 | USD | 20.375 | 20.75 | 20.375 | 20.375 | 6.7917 | -0.25 (-1.21%) | 82,900 |
| 12 May 1981 | USD | 20.625 | 20.875 | 20.5 | 20.625 | 6.875 | 0.0 (0.0%) | 34,900 |
| 11 May 1981 | USD | 20.625 | 21.25 | 20.625 | 20.625 | 6.875 | -0.375 (-1.79%) | 23,300 |
| 8 May 1981 | USD | 21 | 21.125 | 20.875 | 21 | 7 | 0.0 (0.0%) | 26,300 |
| 7 May 1981 | USD | 21 | 21.25 | 21 | 21 | 7 | -0.125 (-0.59%) | 13,600 |
| 6 May 1981 | USD | 21.125 | 21.125 | 20.875 | 21.125 | 7.0417 | +0.125 (+0.60%) | 24,900 |
| 5 May 1981 | USD | 21 | 21.375 | 20.875 | 21 | 7 | +0.125 (+0.60%) | 30,700 |
| 4 May 1981 | USD | 20.875 | 21 | 20.625 | 20.875 | 6.9583 | -0.25 (-1.18%) | 31,100 |
| 1 May 1981 | USD | 21.125 | 21.375 | 21.125 | 21.125 | 7.0417 | +0.125 (+0.60%) | 8,000 |
| 30 Apr 1981 | USD | 21 | 21.375 | 21 | 21 | 7 | 0.0 (0.0%) | 46,000 |
