The York urban area had a population of List of urban areas in England by population comprising 66,142 males and 71,363 females in 2001. The urban areas population increased to 153,717 by the time of the United Kingdom Census 2011. Also at the time of the United Kingdom Census 2001, the City of York had a total population of 181,094 of whom 93,957 were female and 87,137 were male. Of the 76,920 households in York, 36.0% were married couples living together, 31.3% were one-person households, 8.7% were cohabitation couples and 8.0% were lone parents. The figures for lone parent households were below the national average of 9.5%, and the percentage of married couples was also close to the national average of 36.5%; the proportion of one person households was slightly higher than the national average of 30.1%.
Question: How many more percent of households were married couples living together than one-person households?
Answer: 4.7