2020 Duolingo Language Report: Public data

	A	B	C	D
1	Column	Description	Calculation	Notes

2	Unless otherwise noted, data include learners who studied languages on Duolingo between 2019-10-01 and 2020-09-30.
3	country	name of country/governing body		Country aggregations are based on internationally-recognized, independent, self-governing entities as outlined at https://www.worldatlas.com/nations.htm Includes only countries with at least 5000 Duolingo learners during the time range
4	pop1	most popular language studied in the country	largest total number of unique active learners in the country studying the language during the time range	May include learners in different courses (eg, Spanish for English speakers, Spanish for German speakers) studying the same language (eg, Spanish) Some languages are taught in multiple courses; others are only available in one course (eg, Guaraní is only available for Spanish speakers) See incubator.duolingo.com for current list of courses and languages offered
5	pop2	second most popular language studied in the country	second largest total number of unique active learners in the country studying the language during the time range	May include learners in different courses (eg, Spanish for English speakers, Spanish for German speakers) studying the same language (eg, Spanish) Some languages are taught in multiple courses; others are only available in one course (eg, Guaraní is only available for Spanish speakers) See incubator.duolingo.com for current list of courses and languages offered
6	pop3	third most popular language studied in the country	third largest total number of unique active learners in the country studying the language during the time range	May include learners in different courses (eg, Spanish for English speakers, Spanish for German speakers) studying the same language (eg, Spanish) Some languages are taught in multiple courses; others are only available in one course (eg, Guaraní is only available for Spanish speakers) See incubator.duolingo.com for current list of courses and languages offered
7	pop1PC	% of learners studying the most popular language in the country	total number of unique active learners in the country studying the language during the time range / total number of unique active learners in the country during the time range
8	pop2PC	% of learners studying the second most popular language in the country	total number of unique active learners in the country studying the language during the time range / total number of unique active learners in the country during the time range
9	pop3PC	% of learners studying the third most popular language in the country	total number of unique active learners in the country studying the language during the time range / total number of unique active learners in the country during the time range
10	pcEN	% of learners in the country studying English	total number of unique active learners in the country studying English during the time range / total number of unique active learners in the country during the time range
11	pcES	% of learners in the country studying Spanish	total number of unique active learners in the country studying Spanish during the time range / total number of unique active learners in the country during the time range
12	pcFR	% of learners in the country studying French	total number of unique active learners in the country studying French during the time range / total number of unique active learners in the country during the time range
13	motivSchool	% of new learners in the country who are studying primarily for School	total number of unique new learners in the country who indicated School in the motivation questionnaire presented during new account sign-up during the time range / total number of unique new learners in the country who were presented the motivation questionnaire during new account sign-up during the time range	"Family" was introduced as an option in the motivation questionnaire on 2019-11-03, so the motivation data were calulcated for 2019-11-05 through 2020-09-30
14	motivWork	% of new learners in the country who are studying primarily for Work	total number of unique new learners in the country who indicated Work in the motivation questionnaire presented during new account sign-up during the time range / total number of unique new learners in the country who were presented the motivation questionnaire during new account sign-up during the time range	"Family" was introduced as an option in the motivation questionnaire on 2019-11-03, so the motivation data were calulcated for 2019-11-05 through 2020-09-30
15	motivTravel	% of new learners in the country who are studying primarily for Travel	total number of unique new learners in the country who indicated Travel in the motivation questionnaire presented during new account sign-up during the time range / total number of unique new learners in the country who were presented the motivation questionnaire during new account sign-up during the time range	"Family" was introduced as an option in the motivation questionnaire on 2019-11-03, so the motivation data were calulcated for 2019-11-05 through 2020-09-30
16	motivBrain	% of new learners in the country who are studying primarily for Brain Training	total number of unique new learners in the country who indicated Brain Training in the motivation questionnaire presented during new account sign-up during the time range / total number of unique new learners in the country who were presented the motivation questionnaire during new account sign-up during the time range	"Family" was introduced as an option in the motivation questionnaire on 2019-11-03, so the motivation data were calulcated for 2019-11-05 through 2020-09-30
17	motivFamily	% of new learners in the country who are studying primarily for Family	total number of unique new learners in the country who indicated Family in the motivation questionnaire presented during new account sign-up during the time range / total number of unique new learners in the country who were presented the motivation questionnaire during new account sign-up during the time range	"Family" was introduced as an option in the motivation questionnaire on 2019-11-03, so the motivation data were calulcated for 2019-11-05 through 2020-09-30
18	motivCulture	% of new learners in the country who are studying primarily for Culture	total number of unique new learners in the country who indicated Culture in the motivation questionnaire presented during new account sign-up during the time range / total number of unique new learners in the country who were presented the motivation questionnaire during new account sign-up during the time range	"Family" was introduced as an option in the motivation questionnaire on 2019-11-03, so the motivation data were calulcated for 2019-11-05 through 2020-09-30
19	motivOther	% of new learners in the country who indicated "Other" for their primary motivation for studying	total number of unique new learners in the country who indicated Other in the motivation questionnaire presented during new account sign-up during the time range / total number of unique new learners in the country who were presented the motivation questionnaire during new account sign-up during the time range	"Family" was introduced as an option in the motivation questionnaire on 2019-11-03, so the motivation data were calulcated for 2019-11-05 through 2020-09-30
20	ui1	most popular user interface language (ie, learners that speak this language)	largest total number of unique active learners in the country using this language as their user interface language during the time range
21	ui2	second most popular user interface language (ie, learners that speak this language)	second largest total number of unique active learners in the country using this language as their user interface language during the time range
22	ui1PC	% of learners in the country who use the most popular user interface language	total number of unique active learners in the country who used the language as their user interface language during the time range / total number of unique active learners in the country during the time range
23	ui2PC	% of learners in the country who use the second most popular user interface language	total number of unique active learners in the country who used the language as their user interface language during the time range / total number of unique active learners in the country during the time range
24	covidPop1	most popular language studied in the country between 2020-03-11 and 2020-04-30	largest total number of unique active learners in the country studying the language during the time range	May include learners in different courses (eg, Spanish for English speakers, Spanish for German speakers) studying the same language (eg, Spanish) Some languages are taught in multiple courses; others are only available in one course (eg, Guaraní is only available for Spanish speakers) See incubator.duolingo.com for current list of courses and languages offered
25	covidPop2	second most popular language studied in the country between 2020-03-11 and 2020-04-30	second largest total number of unique active learners in the country studying the language during the time range	May include learners in different courses (eg, Spanish for English speakers, Spanish for German speakers) studying the same language (eg, Spanish) Some languages are taught in multiple courses; others are only available in one course (eg, Guaraní is only available for Spanish speakers) See incubator.duolingo.com for current list of courses and languages offered
26	covidPop3	third most popular language studied in the country between 2020-03-11 and 2020-04-30	third largest total number of unique active learners in the country studying the language during the time range	May include learners in different courses (eg, Spanish for English speakers, Spanish for German speakers) studying the same language (eg, Spanish) Some languages are taught in multiple courses; others are only available in one course (eg, Guaraní is only available for Spanish speakers) See incubator.duolingo.com for current list of courses and languages offered
27	covidSchool	% of new learners in the country who are studying primarily for School who created a new account between 2020-03-11 and 2020-04-30	total number of unique new learners in the country who indicated School in the motivation questionnaire presented during new account sign-up during the time range / total number of unique new learners in the country who were presented the motivation questionnaire during new account sign-up during the time range
28	covidWork	% of new learners in the country who are studying primarily for Work who created a new account between 2020-03-11 and 2020-04-30	total number of unique new learners in the country who indicated Work in the motivation questionnaire presented during new account sign-up during the time range / total number of unique new learners in the country who were presented the motivation questionnaire during new account sign-up during the time range
29	covidTravel	% of new learners in the country who are studying primarily for Travel who created a new account between 2020-03-11 and 2020-04-30	total number of unique new learners in the country who indicated Travel in the motivation questionnaire presented during new account sign-up during the time range / total number of unique new learners in the country who were presented the motivation questionnaire during new account sign-up during the time range
30	covidBrain	% of new learners in the country who are studying primarily for Brain Training who created a new account between 2020-03-11 and 2020-04-30	total number of unique new learners in the country who indicated Brain Training in the motivation questionnaire presented during new account sign-up during the time range / total number of unique new learners in the country who were presented the motivation questionnaire during new account sign-up during the time range
31	covidFamily	% of new learners in the country who are studying primarily for Family who created a new account between 2020-03-11 and 2020-04-30	total number of unique new learners in the country who indicated Family in the motivation questionnaire presented during new account sign-up during the time range / total number of unique new learners in the country who were presented the motivation questionnaire during new account sign-up during the time range
32	covidCulture	% of new learners in the country who are studying primarily for Culture who created a new account between 2020-03-11 and 2020-04-30	total number of unique new learners in the country who indicated Culture in the motivation questionnaire presented during new account sign-up during the time range / total number of unique new learners in the country who were presented the motivation questionnaire during new account sign-up during the time range
33	covidOther	% of new learners in the country who indicated "Other" for their primary motivation for studying and who created a new account between 2020-03-11 and 2020-04-30	total number of unique new learners in the country who indicated Other in the motivation questionnaire presented during new account sign-up during the time range / total number of unique new learners in the country who were presented the motivation questionnaire during new account sign-up during the time range
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