Table:
selected characteristics
number of fire safety devices in the household:

none
1 to 2
3

percent

sex

male
1
50
45

female
1
52
40

age group

15 to 24,
f
46
41

25 to 34
1
56
36

35 to 44
f
53
43

45 to 54
1
51
45

55 to 64
0
50
46

65 and older
0
51
43

immigrant status

canadian-born
0
51
44

established immigrant
f
51
44

recent immigrant
f
65
24

visible minority status

visible minority,
f
56
35

not a visible minority
0
51
45

aboriginal identity

aboriginal
f
50
43

non-aboriginal
1
52
43

activity-limitation - long-term physical condition

yes
1
55
40

no
0
51
44

activity-limitation - long-term psychological, emotional or mental health condition

yes (often/always or sometimes),
1
61
32

no
0
51
44

household income

less than $20,000 (includes income loss),
2
65
27

$20,000 to less than $40,000
f
63
29

$40,000 to less than $60,000
f
59
37

$60,000 to less than $80,000
1
55
40

$80,000 to less than $100,000
f
52
42

$100,000 to less than $150,000
f
50
47

$150,000 and over
f
42
54

tenure

own
0
48
47

rent
1
65
27

household size

1 person,
1
63
30

2 persons
0
53
43

3 persons
f
48
45

4 persons
f
46
47

5 persons or more
f
49
42

household composition

household with senior(s)
1
51
44

household without senior(s)
1
52
42

household with child(ren),
1
48
45

household without child(ren)
1
52
42

total
1
51
42

In this table image, can you identify any merged cells and provide their locations in the JSON format of {'top-left':(x, y), 'bottom-right':(z, w)}, where (x, y) is the top-left and (z, w) is the bottom-right cell coordinates? Cell coordinates start from (1,1).

The merged cell areas are as follows:
{'top-left':(1, 1), 'bottom-right':(3, 1)}
{'top-left':(1, 2), 'bottom-right':(1, 4)}
{'top-left':(3, 2), 'bottom-right':(3, 4)}
{'top-left':(4, 2), 'bottom-right':(4, 4)}
{'top-left':(7, 2), 'bottom-right':(7, 4)}
{'top-left':(14, 2), 'bottom-right':(14, 4)}
{'top-left':(18, 2), 'bottom-right':(18, 4)}
{'top-left':(21, 2), 'bottom-right':(21, 4)}
{'top-left':(24, 2), 'bottom-right':(24, 4)}
{'top-left':(27, 2), 'bottom-right':(27, 4)}
{'top-left':(30, 2), 'bottom-right':(30, 4)}
{'top-left':(38, 2), 'bottom-right':(38, 4)}
{'top-left':(41, 2), 'bottom-right':(41, 4)}
{'top-left':(47, 2), 'bottom-right':(47, 4)}.