Task: Question Understanding
Input (English): Passage: Among Richmond residents, 64.56% residents speak English, 23.13% speak Spanish, 2.11% speak Tagalog language, 1.75% speak Chinese, 1.20% speak Hmong-Mien languages, 1.12% speak Laotian language, 0.72% speak Punjabi language, 0.54% speak Cantonese language, 0.51% speak French, 0.5% speak Vietnamese language, 3.49% speak other languages, none of which represents more than half of one percent of the population.
Question: How many percent did not speak Vietnamese?
Output (English): number