Table:
Summary of the 1 May 2008 Mayor of London election results

Name	Party	1st Preference Votes	%	2nd Preference Votes	%	Final	%

Boris Johnson	Conservative	1,043,761	43.2 (+14.1)	257,292	12.9	1,168,738	53.2 (+8.6)

Ken Livingstone	Labour	893,877	37.0 (+0.2)	303,198	15.1	1,028,966	46.8 (-8.6)

Brian Paddick	Liberal Democrat	236,685	9.8 (-5.5)	641,412	32.0	N/A

Siân Berry	Green	77,374	3.2 (+0.1)	331,727	16.6	N/A

Richard Barnbrook	British National Party	69,710	2.9 (-0.2)	128,609	6.4	N/A

Alan Craig	Christian Peoples Alliance	39,249	1.6 (-0.6)	80,140	4.0	N/A

Gerard Batten	UKIP	22,422	0.9 (-5.3)	113,651	5.7	N/A

Lindsey German	Left List	16,796	0.7	35,057	1.7	N/A

Matt O'Connor (withdrew from contest)	English Democrats	10,695	0.4	73,538	3.7	N/A

Winston T. McKenzie	Independent	5,389	0.2	38,854	1.9	N/A

Could you count the number of rows and columns in this table? Your final answer should be in the JSON structure, formatted as {"row_number": "m", "column_number": "n"}.

There are 12 rows and 9 columns in the table. So, the final answer is {"row_number": "12", "column_number": "9"}.