According to the data provided by UNESCO, Iran's literacy rate among people aged 15 years and older was 85.54% as of 2016, with men (90.35%) being significantly more educated than women (80.79%), with the number of illiterate people of the same age amounting to around 8,700,000 of the country's 85 million population. According to this report, Iranian government's expenditure on education amounts to around 4% of the GDP.