Table 1.

Selected age compositions and age-adjustment weights based on the 2010 US census summary population data

Age	Population	Adjustment weight	Age	Population	Adjustment weight
Composition #1			Composition #2
All ages	308 745 538	1.000000	All ages	308 745 538	1.000000
<12 years	48 836 975	0.158179	<18 years	74 181 467	0.240267
12–19 years	34 430 581	0.111518	18–44 years	112 806 642	0.365371
20–29 years	42 687 848	0.138262	45–64 years	81 489 445	0.263937
30–39 years	40 141 741	0.130016	65–74 years	21 713 429	0.070328
40–49 years	43 599 555	0.141215	≥75 years	18 554 555	0.060097
50–59 years	41 962 930	0.135914
60–69 years	29 253 187	0.094749
70–79 years	16 595 961	0.053753
≥80 years	11 236 760	0.036395
Composition #3			Composition #4
≥2 years	300 823 315	1.000000	≥2 years	300 823 315	1.000000
2–5 years	16 335 997	0.054304	2–17 years	66 259 244	0.220260
6–11 years	24 578 755	0.081705	18–44 years	112 806 642	0.374993
12–19 years	34 430 581	0.114454	45–64 years	81 489 445	0.270888
20–29 years	42 687 848	0.141903	65–74 years	21 713 429	0.072180
30–39 years	40 141 741	0.133440	≥75 years	18 554 555	0.061679
40–49 years	43 599 555	0.144934
50–59 years	41 962 930	0.139494
60–69 years	29 253 187	0.097244
70–79 years	16 595 961	0.055168
≥80 years	11 236 760	0.037353
Composition #5			Composition #6
≥18 years	234 564 071	1.000000	≥18 years	234 564 071	1.000000
18–29 years	51 773 937	0.220724	18–24 years	30 672 088	0.130762
30–39 years	40 141 741	0.171133	25–34 years	41 063 948	0.175065
40–49 years	43 599 555	0.185875	35–44 years	41 070 606	0.175093
50–59 years	41 962 930	0.178898	45–64 years	81 489 445	0.347408
60–69 years	29 253 187	0.124713	≥65 years	40 267 984	0.171672
70–79 years	16 595 961	0.070752
≥80 years	11 236 760	0.047905
Composition #7			Composition #8
≥20 years	225 477 982	1.000000	≥20 years	225 477 982	1.000000
20–29 years	42 687 848	0.189322	20–44 years	103 720 553	0.460003
30–39 years	40 141 741	0.178030	45–64 years	81 489 445	0.361408
40–49 years	43 599 555	0.193365	≥65 years	40 267 984	0.178589
50–59 years	41 962 930	0.186107
60–69 years	29 253 187	0.129739
70–79 years	16 595 961	0.073603
≥80 years	11 236 760	0.049835
Composition #9			Composition #10
≥25 years	203 891 983	1.000000	≥40 years	142 648 393	1.000000
25–34 years	41 063 948	0.201401	40–49 years	43 599 555	0.305644
35–44 years	41 070 606	0.201433	50–64 years	58 780 854	0.412068
45–64 years	81 489 445	0.399670	≥65 years	40 267 984	0.282288
≥65 years	40 267 984	0.197497
Composition #11			Composition #12
≥45 years	121 757 429	1.000000	≥50 years	99 048 838	1.000000
45–49 years	22 708 591	0.186507	50–64 years	58 780 854	0.593453
50–64 years	58 780 854	0.482770	≥65 years	40 267 984	0.406547
≥65 years	40 267 984	0.330723
Composition #13			Composition #14
≥65 years	40 267 984	1.000000	<65 years	268 477 554	1.000000
65–74 years	21 713 429	0.539223	<18 years	74 181 467	0.276304
≥75 years	18 554 555	0.460777	18–44 years	112 806 642	0.420172
			45–64 years	81 489 445	0.303524
Composition #15			Composition #16
18–64 years	194 296 087	1.000000	<18 years	74 181 467	1.000000
18–24 years	30 672 088	0.157863	<5 years	20 201 362	0.272324
25–34 years	41 063 948	0.211347	5–11 years	28 635 613	0.386021
35–44 years	41 070 606	0.211382	12–17 years	25 344 492	0.341655
45–64 years	81 489 445	0.419409

Bolded values indicate the total or subtotal numbers by age groups.