Table:
immigrant class

family
economic
business
dependants
refugees

percent distribution

industry

construction of buildings
3.5
2.6
1.8
2.0
4.9

specialty trade contractors
6.9
5.0
2.6
3.7
10.1

manufacturing
1.7
1.5
1.5
1.3
1.8

wholesale trade
1.0
1.3
1.4
1.1
1.0

retail trade
5.3
6.6
7.6
6.7
5.5

truck transportation
5.4
2.5
1.0
1.5
6.0

transit and ground passenger transportation
5.9
5.1
0.9
1.1
9.4

lessors of real estate
13.9
16.8
37.9
22.6
11.5

offices of real estate agents and brokers
1.6
2.8
1.5
2.3
1.4

accounting, tax preparation, bookkeeping and payroll services
1.9
2.8
1.2
2.5
1.3

architectural, engineering and related services
0.4
1.6
0.5
0.7
0.5

computer systems design and related services
0.7
2.5
0.3
1.4
0.6

management, scientific and technical consulting services
3.3
7.4
5.7
4.9
2.5

services to buildings and dwellings
13.0
10.5
8.2
11.9
14.8

offices of physicians
0.9
2.1
0.3
1.8
0.7

offices of dentists
0.4
0.4
0.2
0.9
0.4

child day-care services
10.7
2.9
1.3
6.8
5.3

food services and drinking places
1.0
0.9
1.0
0.9
1.1

all other industries
22.4
24.6
25.0
26.1
21.0

total
100.0
100.0
100.0
100.0
100.0

number

total
119,094
81,116
16,070
88,902
66,056

percent

knowledge-based industries
5.8
13.8
7.5
9.0
4.7

This image shows a table. Determine whether this table contains merged cells and output merged cell areas with the JSON format of {'top-left':(x, y), 'bottom-right':(m, n)}, where x, y, m and n represent the indices of the first row, the first column, the last row, and the last column in the merged region. Row and column indices are numberd from 1.

The merged cell areas are as follows:
{'top-left':(1, 1), 'bottom-right':(3, 1)}
{'top-left':(1, 2), 'bottom-right':(1, 6)}
{'top-left':(3, 2), 'bottom-right':(3, 6)}
{'top-left':(4, 2), 'bottom-right':(4, 6)}
{'top-left':(25, 2), 'bottom-right':(25, 6)}
{'top-left':(27, 2), 'bottom-right':(27, 6)}.