| Date | Currency | Open | High | Low | Close | A.Close | Day Change | Volume |
|---|---|---|---|---|---|---|---|---|
| 4 Mar 1981 | USD | 9.875 | 10.125 | 9.875 | 9.875 | 9.875 | -0.375 (-3.66%) | 21,900 |
| 3 Mar 1981 | USD | 10.25 | 10.375 | 10.25 | 10.25 | 10.25 | +0.375 (+3.80%) | 30,500 |
| 2 Mar 1981 | USD | 9.875 | 10 | 9.875 | 9.875 | 9.875 | -0.375 (-3.66%) | 37,600 |
| 27 Feb 1981 | USD | 10.25 | 10.5 | 10.25 | 10.25 | 10.25 | -0.25 (-2.38%) | 25,000 |
| 26 Feb 1981 | USD | 10.5 | 10.75 | 10.5 | 10.5 | 10.5 | -0.375 (-3.45%) | 20,800 |
| 25 Feb 1981 | USD | 10.875 | 11.125 | 10.875 | 10.875 | 10.875 | -0.25 (-2.25%) | 14,200 |
| 24 Feb 1981 | USD | 11.125 | 11.25 | 11.125 | 11.125 | 11.125 | +0.125 (+1.14%) | 8,800 |
| 23 Feb 1981 | USD | 11 | 11.25 | 11 | 11 | 11 | 0.0 (0.0%) | 12,100 |
| 20 Feb 1981 | USD | 11 | 11.25 | 11 | 11 | 11 | -0.25 (-2.22%) | 11,800 |
| 19 Feb 1981 | USD | 11.25 | 11.375 | 11.25 | 11.25 | 11.25 | +0.25 (+2.27%) | 20,800 |
| 18 Feb 1981 | USD | 11 | 11.125 | 11 | 11 | 11 | -0.125 (-1.12%) | 20,500 |
| 17 Feb 1981 | USD | 11.125 | 11.375 | 11.125 | 11.125 | 11.125 | -0.25 (-2.20%) | 12,300 |
| 16 Feb 1981 | USD | 11.375 | 11.375 | 11.375 | 11.375 | 11.375 | 0.0 (0.0%) | 0 |
| 13 Feb 1981 | USD | 11.375 | 11.625 | 11.375 | 11.375 | 11.375 | -0.375 (-3.19%) | 18,000 |
| 12 Feb 1981 | USD | 11.75 | 12 | 11.75 | 11.75 | 11.75 | -0.25 (-2.08%) | 16,000 |
| 11 Feb 1981 | USD | 12 | 12.25 | 12 | 12 | 12 | -0.25 (-2.04%) | 6,100 |
| 10 Feb 1981 | USD | 12.25 | 12.375 | 12.25 | 12.25 | 12.25 | -0.125 (-1.01%) | 11,800 |
| 9 Feb 1981 | USD | 12.375 | 12.5 | 12.375 | 12.375 | 12.375 | +0.5 (+4.21%) | 20,000 |
| 6 Feb 1981 | USD | 11.875 | 12.125 | 11.875 | 11.875 | 11.875 | +0.25 (+2.15%) | 16,500 |
| 5 Feb 1981 | USD | 11.625 | 11.75 | 11.625 | 11.625 | 11.625 | +0.25 (+2.20%) | 21,100 |
| 4 Feb 1981 | USD | 11.375 | 11.5 | 11.375 | 11.375 | 11.375 | +0.125 (+1.11%) | 28,300 |
| 3 Feb 1981 | USD | 11.25 | 11.375 | 11.25 | 11.25 | 11.25 | 0.0 (0.0%) | 17,200 |
| 2 Feb 1981 | USD | 11.25 | 11.375 | 11.25 | 11.25 | 11.25 | -0.375 (-3.23%) | 21,500 |
| 30 Jan 1981 | USD | 11.625 | 11.875 | 11.625 | 11.625 | 11.625 | +0.125 (+1.09%) | 26,500 |
| 29 Jan 1981 | USD | 11.5 | 11.625 | 11.5 | 11.5 | 11.5 | -0.125 (-1.08%) | 64,100 |
| 28 Jan 1981 | USD | 11.625 | 11.875 | 11.625 | 11.625 | 11.625 | 0.0 (0.0%) | 37,900 |
| 27 Jan 1981 | USD | 11.625 | 11.875 | 11.625 | 11.625 | 11.625 | 0.0 (0.0%) | 27,800 |
| 26 Jan 1981 | USD | 11.625 | 11.75 | 11.625 | 11.625 | 11.625 | -1 (-7.92%) | 46,700 |
| 23 Jan 1981 | USD | 12.625 | 12.75 | 12.625 | 12.625 | 12.625 | 0.0 (0.0%) | 10,100 |
| 22 Jan 1981 | USD | 12.625 | 12.75 | 12.625 | 12.625 | 12.625 | -0.125 (-0.98%) | 15,000 |
