| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 3 Jun 1981 | USD | 27.75 | 27.75 | 26.75 | 27.75 | 9.25 | -0.125 (-0.45%) | 253,000 |
| 2 Jun 1981 | USD | 27.875 | 28.125 | 27.75 | 27.875 | 9.2917 | -0.625 (-2.19%) | 235,500 |
| 1 Jun 1981 | USD | 28.5 | 29.25 | 28.25 | 28.5 | 9.5 | 0.0 (0.0%) | 206,100 |
| 29 May 1981 | USD | 28.5 | 29.875 | 28.25 | 28.5 | 9.5 | -1.5 (-5%) | 255,400 |
| 28 May 1981 | USD | 30 | 31.25 | 29.375 | 30 | 10 | -1.25 (-4%) | 229,200 |
| 27 May 1981 | USD | 31.25 | 32.25 | 31.25 | 31.25 | 10.4167 | -1.25 (-3.85%) | 206,700 |
| 26 May 1981 | USD | 32.5 | 32.5 | 30.875 | 32.5 | 10.8333 | +1.625 (+5.26%) | 123,600 |
| 25 May 1981 | USD | 30.875 | 30.875 | 30.875 | 30.875 | 10.2917 | 0.0 (0.0%) | 0 |
| 22 May 1981 | USD | 30.875 | 31.125 | 30.75 | 30.875 | 10.2917 | -0.125 (-0.40%) | 55,400 |
| 21 May 1981 | USD | 31 | 31.625 | 30.5 | 31 | 10.3333 | -0.375 (-1.20%) | 179,000 |
| 20 May 1981 | USD | 31.375 | 31.625 | 31.125 | 31.375 | 10.4583 | +0.375 (+1.21%) | 105,200 |
| 19 May 1981 | USD | 31 | 31.375 | 31 | 31 | 10.3333 | -0.25 (-0.80%) | 85,800 |
| 18 May 1981 | USD | 31.25 | 32.125 | 31.125 | 31.25 | 10.4167 | -0.5 (-1.57%) | 92,700 |
| 15 May 1981 | USD | 31.75 | 32.25 | 31.375 | 31.75 | 10.5833 | 0.0 (0.0%) | 96,400 |
| 14 May 1981 | USD | 31.75 | 31.75 | 31 | 31.75 | 10.5833 | +0.5 (+1.60%) | 107,900 |
| 13 May 1981 | USD | 31.25 | 31.875 | 31.25 | 31.25 | 10.4167 | -0.75 (-2.34%) | 122,600 |
| 12 May 1981 | USD | 32 | 32 | 31.125 | 32 | 10.6667 | +0.625 (+1.99%) | 97,600 |
| 11 May 1981 | USD | 31.375 | 32.75 | 31.375 | 31.375 | 10.4583 | -1.625 (-4.92%) | 119,000 |
| 8 May 1981 | USD | 33 | 33.375 | 32.875 | 33 | 11 | 0.0 (0.0%) | 93,100 |
| 7 May 1981 | USD | 33 | 33.25 | 32.75 | 33 | 11 | +0.375 (+1.15%) | 94,100 |
| 6 May 1981 | USD | 32.625 | 32.75 | 32.125 | 32.625 | 10.875 | +1.25 (+3.98%) | 190,000 |
| 5 May 1981 | USD | 31.375 | 31.875 | 30.5 | 31.375 | 10.4583 | +0.375 (+1.21%) | 165,800 |
| 4 May 1981 | USD | 31 | 31.75 | 30.875 | 31 | 10.3333 | -1.125 (-3.50%) | 180,700 |
| 1 May 1981 | USD | 32.125 | 32.75 | 31.75 | 32.125 | 10.7083 | +0.125 (+0.39%) | 226,200 |
| 30 Apr 1981 | USD | 32 | 32.625 | 31.875 | 32 | 10.6667 | -0.25 (-0.78%) | 284,600 |
| 29 Apr 1981 | USD | 32.25 | 32.375 | 31.625 | 32.25 | 10.75 | 0.0 (0.0%) | 286,500 |
| 28 Apr 1981 | USD | 32.25 | 32.375 | 31.25 | 32.25 | 10.75 | +0.875 (+2.79%) | 275,000 |
| 27 Apr 1981 | USD | 31.375 | 31.5 | 30.875 | 31.375 | 10.4583 | 0.0 (0.0%) | 154,600 |
| 24 Apr 1981 | USD | 31.375 | 31.75 | 30 | 31.375 | 10.4583 | +1 (+3.29%) | 285,100 |
| 23 Apr 1981 | USD | 30.375 | 31.125 | 30 | 30.375 | 10.125 | -0.375 (-1.22%) | 316,900 |
