Table:
characteristic
number '000
95% confidence interval
%
95% confidence interval

from
to
from
to

total
1,297.8
1,096.4
1,499.2
16.2
14.0
18.7

age group

15 to 19
316.3
242.6
390.0
29.9
24.4
36.0

20 to 24
312.9
184.3
441.5
29.2
21.3
38.6

25 to 29
278.9
155.8
402.0
26.8
18.4
37.2

30 to 34
197.1
106.1
288.0
20.0
13.4
28.9

35 to 39
120.2
71.0
169.3
9.7
6.4
14.4

40 to 49
72.37
40.7
104.1
2.8
1.8
4.1

marital status

married
242.9
145.8
340.1
7.6
5.2
10.8

common-law
303.8
198.0
409.7
22.5
17.5
28.4

previously married
22.4
7.2
37.6
4.7
2.4
9.0

single
728.6
570.1
887.1
24.7
20.2
29.9

parity

nulliparous
932.0
767.5
1,096.4
25.9
21.7
30.7

parous
365.1
261.1
469.1
8.4
6.5
10.9

sexually active in past year

no
175.3
69.5
281.2
13.7
7.9
22.6

yes
1,121.8
950.7
1,292.8
16.9
14.7
19.4

immigrant

no
1,164.6
971.8
1,357.3
19.0
16.7
21.5

yes
133.2
41.1
225.4
7.1
3.7
13.2

household income

lower
653.2
485.9
820.5
17.0
13.1
21.6

higher
644.6
519.9
769.3
15.5
13.0
18.4

has regular medical doctor

no
150.0
73.9
226.1
13.7
8.9
20.6

yes
1,147.8
935.8
1,359.8
16.6
14.0
19.5

Statement: according to combined data from the 2007 to 2009 and 2009 to 2011 chms, 16% non-pregnant women aged 15 to 49 used ocs in the previous month.
Question: according to combined data from the 2007 to 2009 and 2009 to 2011 chms, what was the proportion of non-pregnant women aged 15 to 49 that used ocs in the previous month?
Answer: [16.2]