Table:
enterprise size class
2008
2014
variation of number

number
share
number
share

between 1 and 4
662,589
64.4
707,075
64.9
6.7

between 5 and 9
183,979
17.9
187,773
17.2
2.1

between 10 and 19
97,574
9.5
102,493
9.4
5.0

between 20 and 49
56,411
5.5
61,520
5.6
9.1

between 50 and 99
16,991
1.7
18,596
1.7
9.4

between 100 and 249
7,566
0.7
8,219
0.8
8.6

between 250 and 499
1,770
0.2
1,893
0.2
6.9

between 500 and 999
737
0.1
805
0.1
9.2

1,000 and above
780
0.1
762
0.1
-2.3

total
1,028,397
100.0
1,089,136
100.0
5.9

A merged cell in a table can be described using the JSON {'top-left':(R1, C1), 'bottom-right':(R2, C2)}. Here, '(R1, C1)' represents the top-left and '(R2, C2)' the bottom-right cells' (row_id, column_id) of the merged region. Using the displayed table image, identify all such merged cells in this table and report their locations in the given format. Note that the numbering of both row and column IDs starts at 1.

The merged cell regions 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':(2, 6)}.