Created with Raphaël 2.1.2
0
X
5
10
15
20
25
30
0
　0–9
0.1
　10–19
0.7
　20–29
1.8
　30–39
3.7
　40–49
12.7
　50–59
30.2
　60–69
30.5
　70–79
20.3
　≥80
 f 
in