In every April, students are measured their heights and weights at school. The government collects those data and publishes them each year. Here are the 2015 data on the distribution of 8 year-old boys height. The biggest cluster is 128cm/4'2" (7.55%).
Figure: Distribution of 8 Year-old Boys Height in Japan, 2015
cm | feet | % |
93 | 3'1" | 0.02 |
94 | 3'1" | 0 |
95 | 3'1" | 0 |
96 | 3'2" | 0 |
97 | 3'2" | 0 |
98 | 3'2" | 0 |
99 | 3'3" | 0 |
100 | 3'3" | 0.01 |
101 | 3'4" | 0 |
102 | 3'4" | 0 |
103 | 3'4" | 0 |
104 | 3'5" | 0 |
105 | 3'5" | 0.01 |
106 | 3'6" | 0 |
107 | 3'6" | 0 |
108 | 3'6" | 0 |
109 | 3'7" | 0.01 |
110 | 3'7" | 0.01 |
111 | 3'8" | 0.02 |
112 | 3'8" | 0.11 |
113 | 3'8" | 0.14 |
114 | 3'9" | 0.16 |
115 | 3'9" | 0.30 |
116 | 3'10" | 0.59 |
117 | 3'10" | 0.78 |
118 | 3'10" | 1.18 |
119 | 3'11" | 1.85 |
120 | 3'11" | 2.50 |
121 | 4'0" | 3.15 |
122 | 4'0" | 3.92 |
123 | 4'0" | 4.91 |
124 | 4'1" | 6.08 |
125 | 4'1" | 6.54 |
126 | 4'2" | 6.92 |
127 | 4'2" | 7.51 |
128 | 4'2" | 7.55 |
129 | 4'3" | 7.01 |
130 | 4'3" | 6.77 |
131 | 4'3" | 6.12 |
132 | 4'4" | 5.67 |
133 | 4'4" | 4.52 |
134 | 4'5" | 3.80 |
135 | 4'5" | 3.29 |
136 | 4'5" | 2.46 |
137 | 4'6" | 1.86 |
138 | 4'6" | 1.38 |
139 | 4'7" | 0.98 |
140 | 4'7" | 0.63 |
141 | 4'7" | 0.46 |
142 | 4'8" | 0.28 |
143 | 4'8" | 0.22 |
144 | 4'9" | 0.15 |
145 | 4'9" | 0.03 |
146 | 4'9" | 0.05 |
147 | 4'10" | 0.02 |
148 | 4'10" | 0 |
149 | 4'11" | 0.01 |
150 | 4'11" | 0.01 |
151 | 4'11" | 0 |
152 | 4'12" | 0 |
153 | 5'0" | 0 |
Source is Ministry of Education, Culture, Sports, Science and Technology.
www.mext.go.jp/b_menu/toukei/chousa05/hoken/kekka/k_detail/1365985.htm
www.e-stat.go.jp/SG1/estat/Xlsdl.do?sinfid=000031399258
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