age (years) total (in thousands) % of US pop. males (in thousands) females in thousands) % male % female sex ratio: male/female < 5 18,827 5.7% 9,624 9,203 51.1% 48.9% 1.05 < 15 60,467 18.2% 30,989 29,578 51.2% 48.8% 1.05 0 3,564 1.1% 1,822 1,743 51.1% 48.9% 1.05 15-24 43,089 13.0% 21,996 21,092 51.0% 49.0% […]