Table:
sector
share in enterprises
share in employment

percent

agriculture, forestry, fishing and hunting
4.38
6.58

mining, oil and gas extraction, and utilities
3.34
2.77

construction
9.68
5.10

manufacturing
12.93
8.00

wholesale trade
18.47
10.02

retail trade
18.80
8.95

transportation and warehousing
24.78
6.67

professional services
10.97
10.00

education and health services
19.07
14.31

arts, entertainment and recreation, and accommodation and food services
24.01
15.36

other services
14.34
10.17

In tables, merged cells are often found and we can denote them as JSON {'top-left':(A, B), 'bottom-right':(C, D)}, with '(A, B)' and '(C, D)' indicating the (row_id, column_id) of the top-left and bottom-right cells of the merged region. Please scan the table image provided, find all occurrences of merged cells, and return their coordinates in the stated format. It's important to remember 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':(2, 2), 'bottom-right':(2, 3)}.