Table:
number
percentage points

devitalization factors

non-transmission of mother tongue
-7,075
-23.4

complete language transfers
-630
-2.1

total losses
-7,705
-25.5

mitigating factors

knowledge of mother tongue without using it at home
475
1.6

use of inuktut at home among inuit who do not report it as mother tongue
3,445
11.4

main use
525
1.7

secondary use
2,920
9.7

secondary speakers
450
1.5

total mitigating factors
4,370
14.5

mitigating factors

transmission of inuit mother tongue to non-inuit
105
0.3

use of inuktut at home among non-inuit who do not report it as mother tongue
225
0.7

secondary speakers
130
0.4

total mitigating factors
460
1.5

sum of mitigating factors
4,830
16.0

sum of devitalization factors and mitigating factors
-2,875
-9.5

Here's what I need you to do:
In the image of this table, identify all the merged cells. Provide the coordinates of these merged regions in the JSON {'top-left':(X1, Y1), 'bottom-right':(X2, Y2)}, with '(X1, Y1)' and '(X2, Y2)' indicating the (row_id, column_id) of the top-left and bottom-right cells, respectively. Remember, row and column numbering starts at 1.

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