Table:
fiscal year
all r&d expenditures
federal government
state and local government
business
nonprofit organizations
all other sources

2010
18880609
18453552
52871
168561
23665
181960

2011
18671245
18276088
26744
190111
38878
139424

2012
18280943
17875012
39428
184434
45926
136143

2013
17667184
17284513
50449
186911
39390
105921

2014
17718556
17331396
28337
220735
37182
100906

2015
18458257
18097189
18427
208780
27984
105877

From the provided table image, locate any cells that are merged and list their regions as {'top-left':(x, y), 'bottom-right':(m, n)}, with (x, y) indicating the (row_id, column_id) of top-left cell and (m, n) the bottom-right cell. Both the row_id and column_id start from 1.

This table does not contain any merged cells.