Table:
population
total
canadian-born
immigrant

women
men
women
men
women
men

percentage

age 15 and over

visible minority
10.6
9.3
11.4
12.3
10.5
8.5

not a visible minority
6.7
7.8
6.7
7.9
6.7
6.1

age 15 to 24

visible minority
19.5
21.5
19.1
22.4
19.8
20.5

not a visible minority
14.5
16.9
14.5
16.9
15.3
17.2

age 25 to 54

visible minority
9.3
7.2
6.7
6.7
9.8
7.3

not a visible minority
5.3
6.0
5.2
6.1
6.5
5.4

age 55 to 64

visible minority
8.2
8.1
4.1
7.5
8.3
8.1

not a visible minority
5.3
6.9
5.3
7.0
5.3
6.0

age 65 and over

visible minority
10.2
7.8
4.3
5.0
10.3
8.0

not a visible minority
7.4
6.5
7.7
6.9
6.6
5.1

A table may have multiple merged cells and we can represent a merged cell region by a JSON {'top-left':(A, B), 'bottom-right':(C, D)}. Here, '(A, B)' and '(C, D)' denote the coordinates (row_id, column_id) of the top-left and bottom-right cells of the merged regions, respectively. Now, based on the shown table image, please find all merged cells in this table and return their representations in the above format. Keep in mind that row and column IDs start from 1.

The merged cell regions are as follows:
{'top-left':(1, 1), 'bottom-right':(3, 1)}
{'top-left':(1, 2), 'bottom-right':(1, 3)}
{'top-left':(1, 4), 'bottom-right':(1, 5)}
{'top-left':(1, 6), 'bottom-right':(1, 7)}
{'top-left':(3, 2), 'bottom-right':(3, 7)}
{'top-left':(4, 2), 'bottom-right':(4, 7)}
{'top-left':(7, 2), 'bottom-right':(7, 7)}
{'top-left':(10, 2), 'bottom-right':(10, 7)}
{'top-left':(13, 2), 'bottom-right':(13, 7)}
{'top-left':(16, 2), 'bottom-right':(16, 7)}.