Table:
socio-economic characteristic
no police contact in 24 months prior to death
at least one contact with police in 24 months prior to death

percent

years employed in the 5 years prior to death

none
34
34

one to four
37
47

all five
29
20

industry of last held job

construction
20
23

manufacturing
8
10

retail trade
10
9

transportation and warehousing
7
5

administrative and support, waste management and remediation services
11
15

accommodation and food services
11
11

years receiving social assistance in the 5 years prior to death

none
45
32

one to four
25
34

all five
30
34

income and social assistance received
dollars

total income for last year employed - mean
25,207
15,325

amount of social assistance most recently received - mean
7,875
7,173

Given this table, what are the contents in row 20? Show the cells in a row in the JSON format {"row_id":"<row index>", "cell_list":"<a list of cells in this row>"}. For example, {"row_id":"1", "cell_list": ["A", "B", "C"]}.

The cells in row 20: {"row_id": "20", "cell_list": ['amount of social assistance most recently received - mean', '7,875', '7,173']}