An investigator is measuring the volume of a constant mass of gas at different pressures, maintaining a constant temperature.
The results of the experiment are shown in the table below.
| Pressure in kPa | Volume in cm3\text{cm}^3cm3 |
|---|---|
| 60 | 50.0 |
| 80 | 37.5 |
| 100 (shaded) | 30.0 (shaded) |
| 120 | 25.0 |
| 140 | 21.4 |
| 160 | 18.8 |
All but one of the data points have been plotted on the grid below.

Plot the missing data point from the shaded row in Table 1 onto the graph.