Banking system z-scores, 2021:
The average for 2021 based on 136 countries was 17.25 index points. The highest value was in Luxembourg: 51.67 index points and the lowest value was in Iceland: 1.28 index points. The indicator is available from 2000 to 2021. Below is a chart for all countries where data are available.
Measure: index points;
* indicates monthly or quarterly data series
Definition: The index captures the probability of default of a country's banking system. Z-score compares the buffer of a country's banking system (capitalization and returns) with the volatility of those returns. It is estimated as (ROA+(equity/assets))/sd(ROA); sd(ROA) is the standard deviation of ROA. ROA, equity, and assets are country-level aggregate figures. Calculated from underlying bank-by-bank unconsolidated data from Bankscope.