Table:
Country	1970s	1980s

Holland	2	2

Germany	9	11

France	3	5

Russia	5	1

How many rows and columns does this table contain? The final result should be presented in the JSON format of {"row_number": "m", "column_number": "n"}.

This table has 6 rows and 3 columns. Thus, the final answer is {"row_number": "6", "column_number": "3"}.