Table:
health risk behaviours
heterosexual
gay or lesbian
bisexual
sexual orientation n.e.c
total sexual minority

percent
95% confidence interval
percent
95% confidence interval
percent
95% confidence interval
percent
95% confidence interval
percent
95% confidence interval

from
to
from
to
from
to
from
to
from
to

binge drinking in the past 12 months
44.1
43.4
44.8
52.7
46.6
58.7
55.3
48.4
61.9
38.3
23.8
55.3
53.0
48.5
57.4

non-medicinal cannabis use in the past 12 months
15.3
14.8
15.9
28.5
23.6
33.9
46.3
39.8
53.0
20.8
11.1
35.6
37.0
32.8
41.3

non-prescribed drug use in the past 12 months
2.6
2.3
2.9
6.6
4.2
10.2
14.0
10.3
18.8
f
f
f
10.3
8.0
13.0

used drugs or alcohol to cope

with abuse or violence that occurred in lifetime
10.4
9.9
11.0
18.2
14.1
23.2
29.5
23.8
35.9
20.2
11.0
34.3
24.1
20.4
28.3

with abuse or violence that occurred in past 12 months
9.7
7.2
13.0
f
f
f
31.0
18.2
47.4
f
f
f
29.4
19.1
42.3

Look at the table in the image and show any merged cells, specifying their locations with the JSON format of {'top-left':(x, y), 'bottom-right':(m, n)}, where x, y, m and n are indices (starting from 1) of the first row, the first column, the last row and the last column, respectively.

The merged cell regions are as follows:
{'top-left':(1, 1), 'bottom-right':(3, 1)}
{'top-left':(1, 2), 'bottom-right':(1, 4)}
{'top-left':(1, 5), 'bottom-right':(1, 7)}
{'top-left':(1, 8), 'bottom-right':(1, 10)}
{'top-left':(1, 11), 'bottom-right':(1, 13)}
{'top-left':(1, 14), 'bottom-right':(1, 16)}
{'top-left':(2, 2), 'bottom-right':(3, 2)}
{'top-left':(2, 3), 'bottom-right':(2, 4)}
{'top-left':(2, 5), 'bottom-right':(3, 5)}
{'top-left':(2, 6), 'bottom-right':(2, 7)}
{'top-left':(2, 8), 'bottom-right':(3, 8)}
{'top-left':(2, 9), 'bottom-right':(2, 10)}
{'top-left':(2, 11), 'bottom-right':(3, 11)}
{'top-left':(2, 12), 'bottom-right':(2, 13)}
{'top-left':(2, 14), 'bottom-right':(3, 14)}
{'top-left':(2, 15), 'bottom-right':(2, 16)}
{'top-left':(7, 2), 'bottom-right':(7, 16)}.