Table:
characteristic
total
men
women

veteran
nonveteran
veteran
nonveteran
veteran
nonveteran

all civilian college graduates
3625000
57256000
3189000
25053000
436000
32204000

race and ethnicity

white, non-hispanic
75
72.1
77.8
73.7
54.4
70.9

black, non-hispanic
13.3
7.3
11.3
5.7
27.8
8.5

asian, non-hispanic
2
9.8
2
10.8
1.9
9.1

other, non-hispanic
2.9
2.3
3
2.1
2.1
2.5

hispanic
6.8
8.5
5.8
7.8
13.8
9

age groups

34 or younger
5.6
25
4.9
23.9
10.7
25.8

35-44
11.8
22.1
10.7
21.3
19.8
22.7

45-54
20.2
20.6
17.7
20.4
38.7
20.7

55-64
21.7
18.9
21.5
19.8
23.9
18.1

65-75
40.6
13.5
45.3
14.6
6.8
12.6

median age
61
46
63
47
49
45

disability statusa

has one or more disabilities
27
13.1
26.9
13.4
27.6
13

no disability
73
86.9
73.1
86.6
72.4
87

A merged cell in a table could be represented by the JSON {'top-left':(x, y), 'bottom-right':(m, n)}, where '(x, y)' and '(m, n)' signify the (row_id, column_id) of the top-left and bottom-right cells in the merged area. Using the shown table image, locate all merged cells and provide their coordinates in this format. Bear in mind that row and column IDs begin from 1.

The merged cell areas are as follows:
{'top-left':(1, 1), 'bottom-right':(2, 1)}
{'top-left':(1, 2), 'bottom-right':(1, 3)}
{'top-left':(1, 4), 'bottom-right':(1, 5)}
{'top-left':(1, 6), 'bottom-right':(1, 7)}.