Former Prime Ministers of Singapore, Lee Kuan Yew and Goh Chok Tong, have stated that Singapore does not fit the traditional description of a nation, calling it a society-in-transition, pointing out the fact that Singaporeans do not all speak the same language, share the same religion, or have the same customs.Even though English is the first language of the nation, according to the government's 2010 census 20% of Singaporeans, or one in five, are illiterate in English. This is a marked improvement from 1990 where 40% of Singaporeans were illiterate in English.