Table:
Venue
County
Province
First
Last
Times

Portmarnock Golf Club
Dublin
Leinster
1927
2003
19

Royal County Down Golf Club
Down
Ulster
1928
2015
4

Royal Portrush Golf Club
Antrim
Ulster
1930
2012
4

Royal Dublin Golf Club
Dublin
Leinster
1931
1985
6

Cork Golf Club
Cork
Munster
1932
1932
1

Malone Golf Club
Antrim
Ulster
1933
1933
1

Belvoir Park Golf Club
Antrim
Ulster
1949
1953
2

Woodbrook Golf Club
Wicklow
Leinster
1975
1975
1

Killarney Golf & Fishing Club
Kerry
Munster
1991
2011
4

Mount Juliet Golf & Spa Hotel
Kilkenny
Leinster
1993
1995
3

Druids Glen Golf Club
Wicklow
Leinster
1996
1999
4

Ballybunion Golf Club
Kerry
Munster
2000
2000
1

Fota Island Resort
Cork
Munster
2001
2014
3

County Louth Golf Club
Louth
Leinster
2004
2009
2

Carton House Golf Club
Kildare
Leinster
2005
2013
3

Adare Golf Club
Limerick
Munster
2007
2008
2

The K Club
Kildare
Leinster
2016
2016
1

Portstewart Golf Club
Londonderry
Ulster
2017
2017
1

Ballyliffin Golf Club
Donegal
Ulster
2018
2018
1

Tell me how many rows and columns exist in the given table. Format your final answer as a JSON, using the structure {"row_number": "m", "column_number": "n"}.

This table has 20 rows and 6 columns. Thus, the final answer is {"row_number": "20", "column_number": "6"}.