Answer based on context:

According to CBS, in 2001 the ethnic makeup of the city was 99.8% Jewish and other non-Arab, without significant Arab population. See Population groups in Israel. According to CBS, in 2001 there were 23,700 males and 24,900 females. The population of the city was spread out with 31.4% 19 years of age or younger, 15.7% between 20 and 29, 18.5% between 30 and 44, 18.3% from 45 to 59, 4.1% from 60 to 64, and 11.9% 65 years of age or older. The population growth rate in 2001 was 0.8%.

Which age group was the smallest?
60 to 64