Total
Play alone
Play with
sibling(s)
Play with
friend(s)
Play with
sibling(s)
and
friend(s)
Play in
indefinite
groups
Others
Unknown
Total
100.0
14.6
37.0
19.5
15.5
6.7
5.7
0.9
Sex
Boy
100.0
15.3
37.8
18.3
15.1
6.8
5.9
1.0
Girl
100.0
13.8
36.2
20.8
16.1
6.7
5.5
0.9
Sibling composition
Only child
100.0
33.3
0.0
41.8
0.0
11.9
11.1
1.9
Younger sibling(s) only
100.0
16.4
32.5
21.4
16.4
6.5
5.8
0.9
Elder sibling(s) only
100.0
5.3
55.6
8.5
22.1
4.7
3.3
0.5
Both elder and younger siblings
100.0
1.9
63.1
5.8
24.6
2.4
1.9
0.3
Major nursing patterns
Parents only
100.0
18.3
42.7
15.0
15.0
3.3
5.3
0.4
Nurses, etc. since two years old or younger
100.0
6.8
26.2
30.8
15.9
13.6
5.2
1.6
Parents, and then nurses, etc. since three years old
100.0
6.8
26.9
27.2
19.6
11.7
6.2
1.6
Parents, and then kindergarten teachers since three years old
100.0
9.7
33.9
21.5
21.9
8.0
4.1
0.7
Notes: 1) The figures for total, sex, and sibling composition are based on the responses to the 4th survey (total replies: 41,557), and the major nursing patterns are based on the total responses to the 1st through 4th surveys (total replies: 39,838).
2) The total includes the number of samples with "unknown" for each item.