Passage: Singaporeans are mostly bilingual, with English as their common language and usually the mother-tongue as a second language taught in schools, in order to preserve each individual's ethnic identity and values. The official languages amongst Singaporeans are English (80% literacy), Mandarin (65% literacy), Malay (17% literacy), and Tamil (4% literacy). Singapore English is based on British English, and forms of English spoken in Singapore range from Standard Singapore English to a colloquial form known as "Singlish". Singlish is discouraged by the government.English is the language spoken by most Singaporeans at home, 36.9% of the population, just ahead of Mandarin. Nearly half a million speak other varieties of Chinese, mainly Hokkien, Teochew, and Cantonese, as their home language, although the use of these is declining in favour of Mandarin and English. Singapore Chinese characters are written using simplified Chinese characters.

Question: How many people in Singapore speak Tamil?
4%