- French status: Status of French language in selected countries. Additional information for Mauritius provided by the Ministry of Tourism website of the Republic of Mauritius
- Languages: A rank ordering of languages starting with the largest and sometimes includes the percent of total population speaking that language.
- Linguistic diversity index: LDI.
SOURCES: Ethnologue; CIA World Factbooks 18 December 2003 to 28 March 2011; Wikipedia: Linguistic diversity index (Rankings by country) (UNESCO World Report – Investing in Cultural Diversity and Intercultural Dialogue)