Middle zone NO.

1

2

3

4

5

6

7

Size of residential land (km²)

0

2.8

3.1

4.1

10.2

3.8

5.7

Size of middle zones (km²)

8.2

19.4

10.1

16.7

23.3

12.3

33.9

Proportion

0.0%

14.5%

30.7%

24.8%

43.7%

31.1%

16.8%