This platform reaches the end of its life by end of 2023.

This dataset is an archive of the QNA dataset as of the 7th June of 2019, prior to the 2019 benchmark revisions. As it may happen that countries only cover results for a limited time period when first publishing the results of their benchmark revision, this dataset provides users with longer time series based on the methodology as used before the benchmark revision. In general, longer historical time series become available after a certain amount of time.