Update README.md

README.md

@@ -409,7 +409,15 @@ A typical data point comprises the path to the audio file, usually called `file`
 
 ### Data Splits
 
-TODO
+| # Samples  | Train  | Dev  | Test |
+|------------|--------|------|------|
+| german     | 608296 | 5314 | 5466 |
+| dutch      | 309785 | 4834 | 4570 |
+| french     | 107598 | 3739 | 3763 |
+| spanish    | 168524 | 3148 | 3080 |
+| italian    | 50345  | 1765 | 1835 |
+| portuguese | 34265  | 1134 | 1297 |
+| polish     | 18719  | 853  | 814  |
 
 ### Data Statistics