Average heights of Sakamichi groups: Kanji Keyaki far the tallest

2channel has been talking about how K46 is so tall, compared to Nogi and compared to Hiragana, and someone has posted average heights for Sakamichi groups:

average heights in cm
160.4 欅坂 Kanji
159.2 乃木二期 Nogi 2gen
158.8 乃木三期 Nogi 3gen
158.8 ひらがな Hiragana
157.8 乃木一期 Nogi 1gen

Someone had previously posted that the average height of Japanese women in their 20s is 158.8cm

Here are some (accurate, as opposed to official) heights for K46 members:

Habu 171cm
Risa 理佐168cm
Mona 志田167.5cm
Berika 渡辺165cm
Techi 平手164cm (she said this last summer)
Zuumin 151cm (she said this in a recent interview)

Katoshi かとし159cm
Neru ねる157cm
Memi めみ156cm
Kyonko 京子154cm