m_under_9<1925>13.4<1926>13.9 f_under_9<1925>219<1926>26.8 m_10-15<1925>34.2<1926>38.4 f_10-15<1925>36.4<1926>31.8 m_over_16<1925>52.4<1926>47.7 f_over_16<1925>41.7<1926>41.4