Task: Question Understanding
Input (English): Passage: The median income for a household in the city is $40,146, and the median income for a family is $50,271. Males have a reported median income of $35,279 versus $29,344 reported for females. The per capita income for the city is $22,643. 13.1% of the population and 8.5% of families are below the poverty line. Out of the total population, 15.7% of those under the age of 18 and 10.4% of those 65 and older are living below the poverty line. Figures delineating the income levels based on race are not available at this time. According to the Modern Language Association, in 2010 80.92% (539,885) percent of Multnomah County residents ages 5 and over spoke English as their primary language at home. 8.10% of the population spoke Spanish (54,036), with Vietnamese speakers making up 1.94%, and Russian 1.46%.
Question: How many percent of residents over the age of 5 do not speak English as their primary language at home?
Output (English): number