My Child's (UK) health record book levels off at 19 years with

99.6th: 196 cm
98th: 191 cm
91st: 186 cm
75th: 182 cm
50th: 177 cm
25th: 173 cm
9th: 168 cm
2nd: 164 cm

Our German health book only goes up to 5 years, but it appears that
German kids are slightly taller. I'd expect a higher deviation in the
US population due to a more diverse ethnic mix.

The Russians once made excellent, cheap tanks. One of their secrets was
to size them for something like the 5th or 10th percentile only.