in 1941. The 2011 census showed that there are fewer young people in Aberdeen, with 16.4% under 16, opposed to the national average of 19.2%. According to the 2011 census Aberdeen is 91.9% white, ethnically, 24.7% were born outside Scotland, higher than the national average of 16%. Of this population 7.6% were born in other parts of the UK. 8.2% of Aberdonians stated to be from an ethnic minority (non-white) in the 2011 census, with 9,519 (4.3%) being Asian, with 3,385 (1.5%) coming from India and 2,187 (1.0%) being Chinese. The city has around 5,610 (2.6%) residents of African or Caribbean origin, which is a higher percentage than both Glasgow and Edinburgh. In the household, there were 97,013 individual dwellings recorded in the city, of which 61% were privately owned, 9% privately rented and 23% rented from the council. The most popular type of dwellings are apartments which comprise 49% of residences followed by semi-detached at just below 22%. The median income of a household in the city is £16,813 (the mean income is £20,292) (2005) which places approximately 18% households in the city below the poverty line (defined as 60% of the mean income). Conversely, an Aberdeen postcode has the second highest number of millionaires of any postcode in the UK. Ethnicity Religion Christianity is the main religion practised in the city. Aberdeen's largest denominations are the Church of Scotland (through the Presbytery of Aberdeen) and the Roman Catholic Church, both with numerous churches across the city, with the Scottish Episcopal Church having the third-largest number. The most recent census in 2001 showed that Aberdeen has the highest proportion of non-religious residents of any city in Scotland, with nearly 43% of citizens claiming to have no religion and several former churches in the city have been converted into bars and restaurants. In the Middle Ages, the Kirk of St Nicholas was the only burgh kirk and one of Scotland's largest parish churches. Like a number of other Scottish kirks, it was subdivided after the Reformation, in this case into the East and West churches. At this time, the city also was home to houses of the Carmelites (Whitefriars) and Franciscans (Greyfriars), the latter of which surviving in modified form as the chapel of Marischal College. St Machar's Cathedral was built twenty years after David I (1124–1153) transferred the pre-Reformation Diocese from Mortlach in Banffshire to Old Aberdeen in 1137.