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Model and criteria for qualitative estimation of data uncertainty, adapted from DEPA (2019).
| Data source | Direct availability | Indirect availability | Estimation | Mass balance |
|---|---|---|---|---|
| Qualitative degree of uncertainty | Small | Medium | Large | Extra large |
| Description | Data collected directly from statistic | Data collected from a proxy statistic (such as monetary equivalency) | Projection estimates based on concrete data | Flow computed by balancing corresponding inputs and outputs |
