|
X |
f |
|
580-599 |
3 |
|
560-579 |
9 |
|
540-559 |
13 |
|
520-539 |
15 |
|
500-519 |
17 |
|
480-499 |
21 |
|
460-479 |
19 |
|
440-459 |
25 |
|
420-439 |
23 |
|
400-419 |
18 |
|
380-399 |
15 |
|
360-379 |
12 |
|
340-359 |
9 |
|
320-339 |
5 |
|
300-319 |
2 |
|
|
∑ = 206 |