Which is NOT correct about South Sudan according to the news item?

South Sudan, the world’ s youngest nation, is slowly trying to rebuild after years of conflict. South Sudan has the lowest literacy rate of any country worldwide. Only 27 percent of the adult population can read and write. To fight the problem, officials have launched thousands of adult education classes across the country. The Education Ministry said that more than 208 ,000 South Sudanese adults are now taking classes on how to read and write.