The fifth edition of the SIGI in 2023 covers 179 countries. Because of data gaps, SIGI scores are calculated for only 140 countries in the fifth edition, up from 120 countries in the fourth edition in 2019. SIGI scores range from 0 to 100, with 0 indicating no discrimination and 100 indicating absolute discrimination. Based on their SIGI scores, countries and territories are classified into five levels of discrimination, ranging from very low to very high (Table A A.1).
Aggregated scores are calculated at different geographical levels using the countries and territories for which data and scores are available (Table A A.2). Table A A.3 provides a full overview of the results for all 179 countries included in the fifth edition, at the index and dimension level.