| Speakers | Language | % Correct |
|---|---|---|
| 750,000 | Basque | 78%
|
| 4,700,000 | Sicilian | 76%
|
| 1,200,000 | Sardinian | 73%
|
| 540,000 | Welsh | 72%
|
| 2,400,000 | Galician | 69%
|
| 1,500,000 | Romani | 68%
|
| 4,300,000 | Tatar | 63%
|
| 5,700,000 | Neapolitan | 62%
|
| 500,000 | Occitan | 62%
|
| 3,800,000 | Venetian | 62%
|
| 3,600,000 | Lombard | 53%
|
| 470,000 | Frisian | 52%
|
| 1,400,000 | Chechen | 48%
|
| 1,600,000 | Piedmontese | 44%
|
| 600,000 | Yiddish | 36%
|
| 500,000 | Ligurian | 35%
|
| 600,000 | Walloon | 31%
|
| 1,100,000 | Chuvash | 29%
|
| 520,000 | Silesian | 27%
|
| 1,200,000 | Bashkir | 26%
|
| 450,000 | Ossetian | 24%
|
| 480,000 | Crimean Tatar | 23%
|
| 500,000 | Mari | 22%
|
| 530,000 | Kabardian | 19%
|
| 760,000 | Avar | 17%
|