Administrative Data Coverage Index

Each country gets three sub-scores from 0 to 100 — coverage, frequency & regularity and recency — computed from its ILOSTAT record, counting only observations that come from administrative sources (registers, social-security records, labour inspection and industrial-relations records; surveys and censuses are excluded). The overall score is the weighted average of the three, using the weights on the left. Weights are normalised, so only their relative sizes matter.

The share of the key indicators (weighted by importance, with headline indicators counting more) for which the country has at least one qualifying administrative-source datapoint within the coverage window. The indicator set and the window are set in config_admin.py.

The average of two parts: a periodicity score (monthly data scores highest, then quarterly, then annual, then irregular) based on the fastest cadence the country sustains for its headline indicators; and a regularity score — the share of recent years in which headline data was actually produced, which penalises long gaps.

Based on the age of the most recent qualifying datapoint across the key indicators, decaying linearly from full marks for current-year data down to zero once the newest data passes the configured age limit.