A deep-sea research lander is deployed to the bottom of the Diamantina Trench, which lies at a depth of approximately 7300 m below sea level.

| Depth (m) | Total Pressure (MPa) |
|---|---|
| 0 | 0.1 |
| 1500 | 15.3 |
| 3000 | 30.7 |
| 4500 | 46.2 |
| 6000 | 61.8 |
| 7500 | 77.5 |
| 9000 | 93.3 |
Using the data, estimate the total pressure at the bottom of the Diamantina Trench.