# Data Dictionary - European GDP - quarterly growth, volume index & level, cleaned Parquet

**Units:** vary by `series` - read the per-row `unit` column (overall: % q/q · index · EUR million).  Times are UTC.

| column | type | description |
|---|---|---|
| `zone` | str | Geo / country code (DE, FR, IT, …) |
| `ts` | timestamp (UTC) | First month of quarter |
| `series` | str | GDP growth q/q % / volume index / current-price level |
| `value` | float | Value (%, index, or € million) |
| `unit` | str | Unit |
| `res_min` | int | Native resolution (quarterly) |

*Source: Eurostat (European Commission).*