Age groups	U.S. population
	Proportion (total)	Proportion (20+ years)	Total
Under 1 year	0.0156		3,533,692
1 - 2 years	0.0287		6,493,373
3 - 5 years	0.0419		9,483,880
6 - 11 years	0.0920		20,834,439
12 - 19 years	0.1418		32,113,079
20 - 29 years	0.1803	0.2650	40,839,623
30 - 39 years	0.1392	0.2046	31,526,222
40 - 49 years	0.1005	0.1477	22,759,163
50 - 59 years	0.1030	0.1514	23,325,286
60 - 69 years	0.0833	0.1225	18,870,102
70 - 79 years	0.0512	0.0752	11,591,846
80 years plus	0.0228	0.0336	5,175,100
Total			226,545,805