In the city, the population dispersal was 25.5% under the age of 18, 9.0% from 18 to 24, 34.1% from 25 to 44, 21.4% from 45 to 64, and 10.0% who were 65 years of age or older. The median age was 34 years. For every 100 females, there were 96.0 males. For every 100 females age 18 and over, there were 92.8 males. The median income for a household in the city was $51,581, and the median income for a family was $61,656. Males had a median income of $44,597 versus $31,351 for females. The per capita income for the city was $25,110. About 5.0% of families and 6.6% of the population were below the poverty line, including 7.8% of those under age 18 and 3.6% of those age 65 or over.

Based on the above article, answer a question. How many percent were not under the age of 18?
74.5