This visualisation, done in Observable, helps Common Voice community leads target data acquisition efforts in their communities.
https://observablehq.com/@kathyreid/mozilla-common-voice-v12-dataset-metadata-coverage?collection=@kathyreid/mozilla-common-voice
https://observablehq.com/@kathyreid/mozilla-common-voice-v12-dataset-metadata-coverage?collection=@kathyreid/mozilla-common-voice