Table:
male
female

total number
1,242,600
1,352,000

mean age
38.6
39.4

% distribution

age group

0 to 24
22.5
19.8

25 to 44
41.7
44.4

45 to 64
29.0
27.2

65 or older
6.8
8.6

immigration category

economic class

principal applicant
26.2
12.2

dependant
23.5
33.7

family class
28.9
37.4

refugee class
16.4
12.7

other
5.0
4.0

landing year

1980 to 1989
23.2
22.3

1990 to 1999
44.1
44.9

2000 to 2006
32.7
32.8

source world region

united states
2.1
2.6

caribbean/central and south america
10.1
11.0

western europe
8.1
7.3

eastern europe
12.6
12.6

sub-saharan africa
4.8
4.6

north africa/middle east/west asia
9.4
7.7

south asia
19.3
17.6

south east asia
11.9
14.1

east asia
20.7
21.8

oceania
0.7
0.7

The picture contains a table. You task is to identify any merged cells in this table, and output the scope of each merged cell using the JSON format of {'top-left':(x, y), 'bottom-right':(z, w)}. The row id and column id should start from 1.

The merged cell regions are as follows:
{'top-left':(4, 2), 'bottom-right':(4, 3)}
{'top-left':(5, 2), 'bottom-right':(5, 3)}
{'top-left':(10, 2), 'bottom-right':(10, 3)}
{'top-left':(11, 2), 'bottom-right':(11, 3)}
{'top-left':(17, 2), 'bottom-right':(17, 3)}
{'top-left':(21, 2), 'bottom-right':(21, 3)}.