Task: Question Understanding
Input (English): Passage: As of the census of 2000, there were 61,676 people, 23,291 households, and 15,115 families residing in the county.  The population density was 62 people per square mile (24/km²).  There were 28,481 housing units at an average density of 28 per square mile (11/km²).  The racial makeup of the county was 95.80% White (U.S. Census), 1.75% African American (U.S. Census), 0.23% Native American (U.S. Census), 0.63% Asian (U.S. Census), 0.05% Pacific Islander (U.S. Census), 0.50% from Race (United States Census), and 1.05% from two or more races. Hispanic (U.S. Census) or Latino (U.S. Census) of any race were 1.90% of the population. 15.0% were of Irish people, 14.9% English people, 14.9% Germans, 11.3% Italian people and 9.1% United States ancestry according to Census 2000. 95.4% spoke English language and 2.1% Spanish language as their first language.
Question: How many more housing units are there than families?
Output (English): number