Table:
volunteer rate
average annual volunteer hours

2013
2010
2007
2004
2013
2010
2007
2004

percentage
hours

canada
44
47
46
45
154
156
166
168

newfoundland and labrador
46
52
46
42
151
155
176
188

prince edward island
50
56
56
47
179
157
147
163

nova scotia
51
54
55
48
181
207
183
195

new brunswick
41
49
48
44
180
154
175
185

quebec
32
37
37
34
123
128
162
146

ontario
44
48
47
50
166
164
164
162

manitoba
52
53
54
50
155
141
159
155

saskatchewan
56
58
59
54
139
143
147
188

alberta
50
55
52
48
161
140
172
175

british columbia
49
50
47
45
145
178
172
199

Different merged cells often exist in a table and they can be represented by the JSON {'top-left':(A, B), 'bottom-right':(C, D)}. In this JSON item, '(A, B)' and '(C, D)' are the (row_id, column_id) coordinates for the top-left and bottom-right cells in the merged region, respectively. Please examine the provided table image, identify all merged cells, and return their details using the above-mentioned format. Remember, the numbering for both rows and columns starts at 1.

The merged cell areas are as follows:
{'top-left':(1, 1), 'bottom-right':(3, 1)}
{'top-left':(1, 2), 'bottom-right':(1, 5)}
{'top-left':(1, 6), 'bottom-right':(1, 9)}
{'top-left':(3, 2), 'bottom-right':(3, 5)}
{'top-left':(3, 6), 'bottom-right':(3, 9)}.