As of the census of 2010, 295,803 people, 125,752 households, and 62,915 families resided in the city. The population density was 1,042.8 people per square mile (353.5/km²). The 135,160 housing units averaged 408.3/mi² (157.6/km²). The Race and ethnicity in the United States Census of the city was 75.7% White Americans, 14.5% African Americans, 0.3% Native Americans in the United States, 3.2% Asian Americans, 0.03% Pacific Islander, 1.21% from other races, and 2.5% from two or more races. Hispanic or Latinos of any race were 6.9% of the population.
Question: How many more housing units are there than families?
Answer: 72245