type

SeriesValuePart

One of the values a series is made up of, for example the annual or the monthly amount of the reference value of German social insurance.

The value part describes the value; the value itself, which changes over time, is held by the data points of the series and read via the dataPoint query.

Felder

key: String!: Identifies the value part within the series, for example jahr or monat.

Every data point of the series delivers its value for this part under the same key in DataPoint.values. The key is stable across releases. It is a technical identifier meant for lookup, not a display name, and is therefore not translated.
unit: Unit!: The unit in which the values of this part are given, see Unit.

The unit is a property of the value part and the same for every data point of the series.