Scaled SVDs contain information on typical age-patterns or age-sex patterns for demographic processes, extracted from international databases. The information is extracted using a singular value decomposition (SVD), and then scaled to make it easier to formulate priors.
Scaled SVDs can have multiple versions, based on data released at different dates, or on subsets of the available data.
Some datasets, and hence some scaled SVDs, include information on age but not on sex or gender.
Details
| Scaled SVD | Process | Source | Versions | Sex dimension |
| CSA | School attendance | Census data assembled by UN | "v2025", "v2024" | Yes |
| HFD | Fertility | Human Fertility Database | "v2025", "v2024" | No |
| HIMD_R | Internal migration: annual rates | Human Internal Migration Database | "v2024" | No |
| HIMD_P1 | Internal migration: 1-year probabilities | Human Internal Migration Database | "v2024" | No |
| HIMD_P5 | Internal migration: 5-year probabilities | Human Internal Migration Database | "v2024" | No |
| HMD | Mortality | Human Mortality Database | "v2025", "v2025_50", "v2024" | Yes |
| LFP | Labour Force Participation | OECD | "v2025" | Yes |
| WMD_C | Currently married | World Migration Data | "v2019" | Yes |
| WMD_E | Ever married | World Migration Data | "v2019" | Yes |