Task: Question Answering
Input (English): Passage: In the census of 2010, there were 66,135 people, 26,265 (2000 data) households, and 14,051 (2000 data) families residing in the city. The population density was 6,096.7 people per square mile (2,199.9/km²). There were 30,272 (2000 data) housing units at an average density of 2,790.6 per square mile (1,077.2/km²). The racial makeup of the city was 59.38% (52.31% Non-Hispanic) (7.07 White-Hispanic) White (U.S. Census), 24.19% African American (U.S. Census), 14.47% Hispanic (U.S. Census) or Latin (U.S. Census)) of any race, 8.24% from Race (United States Census), 5.74% from two or more races, 2.62% Asian (U.S. Census), 0.69%  Native American (U.S.Census), and 0.14% Pacific Islander (U.S. Census). There is a growing Guyana population in the area. The top ancestries self-identified by people on the census are Italian (13.6%), Guyanese (12.3%), Irish (12.1%), Puerto Rican (10.1%), German (8.7%), English (6.0%), Polish (5.4%), French (4.4%). These reflect historic and early 20th-century immigration, as well as that since the late 20th century. 
Question: How many more housing units are there than families? 
Answer type: Number 
Output (English): 16221.