Germany was hit particularly hard during the American Great Depression. The reason being was that America was a major source of loans for Germany's reparations after WW1. When Hitler came to power as the Chancellor of Germany, he incited the entire country into a nationalistic rage and establishing a totalitarian single party state, with the support of the Nazi Party.
Water is a polar molecule and also acts as a polar solvent. When a chemical species is said to be "polar," this means that the positive and negative electrical charges are unevenly distributed. The positive charge comes from the atomic nucleus, while the electrons supply the negative charge.
As I recall it was rolled-steel girders riveted together, probably from shipbuilding, together with steam-powered winches and an abundance of cheap steel. As opposed to European cathedrals erected with animal-powered winches and with more expensive forged iron bracing (one of the big cathedrals has a kind or iron corset to keep the walls from bursting outwards).
Answer : I believe it was 10%
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