SSI (statistical suppression) and FCI (fiscal centralisation) have risen sharply since 2014. DQI (democratic quality) has fallen by an equivalent amount. The three are constructed from independent data sources but co-move because they measure related institutional erosion.
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This is one of 36 standing analyses drawn from the Some Perspective dataset. It is not dated commentary: it describes a relationship in the data that holds across the series, and it is regenerated whenever the underlying dataset is refreshed. The figures quoted here reflect the 2026-08-15 data vintage.