Table:
socio-economic characteristic
no police contact in 24 months prior to death
at least one contact with police in 24 months prior to death

percent

years employed in the 5 years prior to death

none
34
34

one to four
37
47

all five
29
20

industry of last held job

construction
20
23

manufacturing
8
10

retail trade
10
9

transportation and warehousing
7
5

administrative and support, waste management and remediation services
11
15

accommodation and food services
11
11

years receiving social assistance in the 5 years prior to death

none
45
32

one to four
25
34

all five
30
34

income and social assistance received
dollars

total income for last year employed - mean
25,207
15,325

amount of social assistance most recently received - mean
7,875
7,173

The task is as follows:
Analyze the table in this image to find every merged cell. Return the regions of these merged cells in the JSON {'top-left':(A, B), 'bottom-right':(C, D)}, where '(A, B)' and '(C, D)' show the (row_id, column_id) of the top-left and bottom-right cells in these regions, respectively. The row and column IDs start from 1.

The merged cell regions are as follows:
{'top-left':(1, 1), 'bottom-right':(2, 1)}
{'top-left':(2, 2), 'bottom-right':(2, 3)}
{'top-left':(3, 2), 'bottom-right':(3, 3)}
{'top-left':(7, 2), 'bottom-right':(7, 3)}
{'top-left':(14, 2), 'bottom-right':(14, 3)}
{'top-left':(18, 2), 'bottom-right':(18, 3)}.