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 5 year-old girls height. The biggest cluster is 110cm/3'7" (9.04%).
Figure: Distribution of 5 Year-old Girls Height in Japan, 2015

| cm | feet | % |
| 90 | 2'11" | 0.01 |
| 91 | 2'12" | 0.01 |
| 92 | 3'0" | 0.01 |
| 93 | 3'1" | 0.01 |
| 94 | 3'1" | 0.03 |
| 95 | 3'1" | 0.05 |
| 96 | 3'2" | 0.14 |
| 97 | 3'2" | 0.25 |
| 98 | 3'2" | 0.34 |
| 99 | 3'3" | 0.62 |
| 100 | 3'3" | 1.02 |
| 101 | 3'4" | 1.52 |
| 102 | 3'4" | 2.53 |
| 103 | 3'4" | 3.56 |
| 104 | 3'5" | 4.45 |
| 105 | 3'5" | 5.69 |
| 106 | 3'6" | 6.44 |
| 107 | 3'6" | 7.92 |
| 108 | 3'6" | 8.27 |
| 109 | 3'7" | 8.33 |
| 110 | 3'7" | 9.04 |
| 111 | 3'8" | 7.46 |
| 112 | 3'8" | 7.17 |
| 113 | 3'8" | 6.35 |
| 114 | 3'9" | 5.10 |
| 115 | 3'9" | 3.87 |
| 116 | 3'10" | 3.46 |
| 117 | 3'10" | 2.14 |
| 118 | 3'10" | 1.45 |
| 119 | 3'11" | 0.91 |
| 120 | 3'11" | 0.86 |
| 121 | 4'0" | 0.47 |
| 122 | 4'0" | 0.21 |
| 123 | 4'0" | 0.16 |
| 124 | 4'1" | 0.06 |
| 125 | 4'1" | 0.06 |
| 126 | 4'2" | 0.02 |
| 127 | 4'2" | 0.02 |
| 128 | 4'2" | 0.01 |
| 129 | 4'3" | 0 |
| 130 | 4'3" | 0 |
| 131 | 4'3" | 0 |
| 132 | 4'4" | 0 |
| 133 | 4'4" | 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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