Table:
primary care receiver

spouse/partner
child
parent
parent-in-law
other family member
friend, colleague or neighbour

caregiver's age
percent

45 to 54
8.0
12.4
53.3
11.3
4.9
9.1

55 to 64
11.1
7.3
49.4
12.3
9.0
10.6

65 and older
34.1
9.1
16.7
6.1
13.7
20.0

65 to 74
27.8
8.2
24.1
8.0
12.9
18.7

75 and older
46.5
11.0
f
f
15.4
22.6

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':(A, B), 'bottom-right':(C, D)}. The row id and column id should start from 1.

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