Wroclaw:
I wouldn't argue much with this. It seems a decent estimation.
I am sure about czech,slovak,ukrainian,belarus and russian girls because I have counted them.For polish girls I rely more on observation and deductive thinking by other close nationalities measurements.
Really the anthropometric characteristics of girls in Lvov are almost similar to girls in Krakow.(slightly different to girls in Poznan though).
Wroclaw:
Twenty-year-olds are definitely taller than the same age group twenty years ago.
Yes,because the latter were impoverished during the '80's when they grew in puberty.Contrary to that today's Czechs have the same height as their ancestors which means they were not impoverished during the '80s.
It is surprising that Eastern German height has fallen in recent years which means that the living standards in Eastern Germany have fallen in relation to communist times!(although the western Germans were always taller than the Eastern Germans,the difference has now increased).