| Name | Lines of code | Maintainability | Test coverage |
| src/Legacy/Numbers/Words/Locale/Ms.php | 218 | F 1 wk | B 88% |
| src/Legacy/Numbers/Words/Locale/Pt/Br.php | 221 | C 1 day | C 71% |
| src/Legacy/Numbers/Words/Locale/Dk.php | 228 | F 4 days | F 40% |
| src/Legacy/Numbers/Words/Locale/Nl.php | 230 | D 2 days | A 92% |
| src/Legacy/Numbers/Words/Locale/Hu.php | 230 | D 1 day | A 94% |
| src/Legacy/Numbers/Words/Locale/Fr.php | 236 | D 1 day | A 96% |
| src/Legacy/Numbers/Words/Locale/Et.php | 237 | D 2 days | B 89% |
| src/Legacy/Numbers/Words/Locale/It.php | 253 | F 3 days | A 97% |
| src/Legacy/Numbers/Words/Locale/Bg.php | 279 | F 4 days | A 90% |
| src/Legacy/Numbers/Words/Locale/Es.php | 280 | F 3 days | A 92% |
| src/Legacy/Numbers/Words/Locale/Mk.php | 322 | F 5 days | A 94% |
| src/Legacy/Numbers/Words/Locale/Ru.php | 368 | D 1 day | C 75% |