Table:
Number of pairs of sandals	Frequency

0	9

1	20

2	12

3	10

4	1

5	13

Please determine the total count of rows and columns in the provided table, respectively. The final result should be presented in the JSON format of {"row_number": "m", "column_number": "n"}.

There are 8 rows and 2 columns in the table. So, the final answer is {"row_number": "8", "column_number": "2"}.