Table:
State	1990	2000

New Mexico	12	15

South Dakota	9	10

Nevada	10	18

Montana	5	6

Idaho	12	15

This image displays a table. Could you provide me with the row number and column number corresponding to this table? Show your final answer in the JSON format {"row_number": "m", "column_number": "n"}.

This table has 7 rows and 3 columns. Thus, the final answer is {"row_number": "7", "column_number": "3"}.