An experimental physicist is investigating the electrical characteristics of a newly synthesized thin-film manganite sensor. The table below shows the measured current through the sensor when a constant potential difference of 12.5 V12.5\text{ V}12.5 V is maintained across it at a temperature of 150 K150\text{ K}150 K.
| Potential difference (V) | Current 1st reading (A) | Current 2nd reading (A) | Current 3rd reading (A) | Mean current (A) |
|---|---|---|---|---|
| 12.5 | 1.65 | 1.12 | 1.71 | ImeanI_{\text{mean}}Imean |
Calculate the mean current ImeanI_{\text{mean}}Imean.