Table:
household income
percentage
mean number of hours

less than $20,000
33
182

$20,000 to $39,999
34
172

$40,000 to $59,999
37
165

$60,000 to $79,999
41
179

$80,000 to $99,999
44
148

$100,000 to $119,999
50
171

$120,000 and over
52
130

Based on the given table, what are the contents of the cells in the following positions in the table? Show the cell value in the JSON format {"row_id":"m", "column_id":"n", "cell_value":"<Corresponding Cell Value>"}.
row 8 and column 1
row 3 and column 1
row 7 and column 2
row 8 and column 2
row 5 and column 3
row 7 and column 3
row 2 and column 3
row 1 and column 3

The target cell values are as follows:
{"row_id":"8", "column_id":"1", "cell_value":"$120,000 and over"}
{"row_id":"3", "column_id":"1", "cell_value":"$20,000 to $39,999"}
{"row_id":"7", "column_id":"2", "cell_value":"50"}
{"row_id":"8", "column_id":"2", "cell_value":"52"}
{"row_id":"5", "column_id":"3", "cell_value":"179"}
{"row_id":"7", "column_id":"3", "cell_value":"171"}
{"row_id":"2", "column_id":"3", "cell_value":"182"}
{"row_id":"1", "column_id":"3", "cell_value":"mean number of hours"}