Table:
age group and sex
number
moderate-to-vigorous physical activity
screen time
sleep

average minutes
95% confidence interval
average hours
95% confidence interval
average hours
95% confidence interval

from
to
from
to
from
to

total
3,111
53.8
50.6
57.0
3.1
2.9
3.2
9.0
8.9
9.1

sex

boys
1,553
60.1
55.8
64.4
3.3
3.1
3.5
9.0
8.9
9.1

girls
1,558
47.1
44.6
49.7
2.8
2.6
3.0
9.0
8.9
9.1

age group

5 to 11
1,985
61.3
57.8
64.7
2.3
2.2
2.5
9.6
9.5
9.7

boys
980
68.3
63.3
73.2
2.4
2.2
2.5
9.6
9.5
9.7

girls
1,005
54.0
51.1
56.8
2.3
2.1
2.5
9.7
9.6
9.8

12 to 17
1,126
46.3
42.5
50.1
3.8
3.5
4.0
8.3
8.2
8.5

boys
573
52.0
46.9
57.1
4.2
3.8
4.5
8.4
8.2
8.6

girls
553
40.3
36.9
43.6
3.4
3.0
3.7
8.2
8.1
8.4

row 12
Extract the contents of cells in the above row. Represent the cells in a row with the JSON format {"row_id":"<row index>", "cell_list":"<a list of cells in this row>"}. For instance, {"row_id":"5", "cell_list": ["152", "UN", "one last kiss"]}.

The cells in row 12: {"row_id": "12", "cell_list": ['12 to 17', '1,126', '46.3', '42.5', '50.1', '3.8', '3.5', '4.0', '8.3', '8.2', '8.5']}