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Accuracy of global positioning system (GPS) location data.
| Accuracy radius (m)a | Location samples n (%) | Median accuracy radius (m) |
| ≤25 | 246 (32.3) | 19 |
| 26-50 | 307 (40.3) | 30 |
| 51-75 | 29 (3.8) | 57 |
| 76-100 | 45 (5.9) | 96 |
| >100 | 134 (17.6) | 2370 |
| Total | 761 (100.0) | 30 |
a68% probability of the true position lying within specified radii of the recorded location coordinates.
