According to census records, the age distribution of the inhabitants of the United States in 1960 and in 1980 is as shown in the table below.
|
Age Group
|
1960
|
1980
|
|
5
|
20,321
|
16,348
|
|
5-9
|
18,692
|
16,700
|
|
10-14
|
16,773
|
18,242
|
|
15-19
|
13,219
|
21,168
|
|
20-24
|
10,801
|
21,319
|
|
25-29
|
10,869
|
19,521
|
|
30-34
|
11,949
|
17,561
|
|
35-39
|
12,481
|
13,965
|
|
40-44
|
11,600
|
11,669
|
|
45-49
|
10,879
|
11,090
|
|
50-54
|
9,606
|
11,710
|
|
55-59
|
8,430
|
11,615
|
|
60-64
|
7,142
|
10,088
|
From an appropriate statistical description of these data sets, comment on the indicated changes in the population in the two decades between 1960 and 1980.
Identify any features that might be due to the "baby-boom" generation-those born during the period from the end of World War II until about 1965.