Table:
age groups
2003
2013-2014

percent

12 to 44
16
19

12 to 17
18
23

18 to 34
13
17

35 to 44
18
22

45 to 64
32
32

45 to 54
26
25

55 to 64
39
39

65 and over
67
64

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':(R1, C1), 'bottom-right':(R2, C2)}, where '(R1, C1)' and '(R2, C2)' 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)}.