According to the 2011 census, about 14% of the city inhabitants were born outside the Czech Republic. That is the highest proportion in the country. However, in 2011, 64.8 per cent of the city's population self-identified themselves as Czechs, which is higher than the national average. Even though official population of Prague hovers around 1.3 million, the real number of people in the city is much higher due to only 65% of its residents being marked as permanently living in the city, these data were taken from mobile phone movements around the city, and bring total population of Prague to about 1.9–2 million, and with additional 300,000 to 400,000 people coming to the city for work, education or shopping, on weekdays there are more than 2 million people in the city.