Table 5 Number of fatality figures in the SI and Witham databases which are given with some degree of uncertainty
From: A statistical analysis of the global historical volcanic fatalities record
| Number | Uncertainty notation | Number of such entries in SI database, post-1600 | Number of such entries in Witham database, post-1600 |
|---|---|---|---|
| 1 | Completely unknown (“?”) | 48 | 7 |
| 2 | “Few” or “Few?” | 3 | 2 |
| 3 | “Some” or “Some?” | 4 | 3 |
| 4 | “Several” or “Several?” | 8 | 0 |
| 5 | “Many” or “Many?” | 21 | 1 |
| 6 | “Hundreds” | 1 | 0 |
| 7 | Approximate (“~x”) | 9 | 2 |
| 8 | Uncertain (“x?”) | 57 | 6 |
| 9 | Below a certain threshold (“<x”) | 1 | 0 |
| 10 | Above a certain threshold (“>x”) | 13 | 3 |
| 11 | Above an uncertain threshold (“>x?”) | 5 | 1 |
| 12 | Two options(“x or y”) | 0 | 2 |
| 13 | Two options, with one uncertain(“x or y?”) | 0 | 2 |
| 14 | Range with certain endpoints (“x-y”) | 0 | 42 |
| 15 | Range with one uncertain endpoint (“x - >y” or“> x – y”) | 0 | 9 |
| Total | 170 | 80 |