Table 1.
Percent of population within 6-inch diameter classes with Type 1-3 population distributions (
6
) and average of all three distributions.
Distrbution type
Diameter class (in.) ‘
0-6
7-12
13-18
19-24
25-30
<30
Type 1
42
27
14
10
6
1
Type 2
21
29
26
8
8
8
Type 3
23
15
20
16
18
8
Avg.
29
24
20
11
11
6