Table:
Rank

Island

Local Authority

Population

c. 1801

1841

1891

1931

1961

1981

2001[18]

2011[12]

1

Lewis and Harris[20]

Na h-Eileanan Siar

12,164

20,046

30,726

28,042

24,107

22,476

19,918

21,031

2

Mainland, Shetland[21]

Shetland

20,572

19,741

15,172

13,282

17,722

17,550

18,765

3

Mainland, Orkney[22]

Orkney

16,022

16,498

13,352

13,495

14,000

15,315

17,162

4

Skye[23]

Highland

14,470 (in 1794)

23,082

15,705

9,908

7,479

7,276

9,232

10,008

5

Bute[24]

Argyll and Bute

4,759 (in 1792)

7,147

11,735

12,112

9,793

7,306

7,228

6,498

6

Arran[25]

North Ayrshire

5,804 (in 1792)

6,241

4,730

4,506

3,700

3,845

5,045

4,629

7

Islay[26]

Argyll and Bute

9,500 (in 1792)

15,772

7,375

4,970

3,860

3,792

3,457

3,228

8

Mull[27]

Argyll and Bute

8,016 (in 1794)

8,316

4,691

2,903

2,154

2,197

2,667

2,800

9

South Uist[28]

Na h-Eileanan Siar

5,093

3,708

2,810

2,376

2,231

1,818

1,754

10

Great Cumbrae[29]

North Ayrshire

509 (in 1793)

1,413

1,784

2,144

1,638

1,300

1,434

1,376

Total

123,704

116,693

95,919

81,884

82,145

83,664

87,251

Change

-5.7%

-7.8%

-14.6%

+0.3%

+1.8%

+4.3%

This image shows a table. Determine whether this table contains merged cells and output merged cell regions 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 regions are as follows:
{'top-left':(1, 1), 'bottom-right':(2, 1)}
{'top-left':(1, 2), 'bottom-right':(2, 2)}
{'top-left':(1, 3), 'bottom-right':(2, 3)}
{'top-left':(1, 4), 'bottom-right':(1, 11)}.