Statistical analysis of German enterprise data [1] - Simple statistics and histogram visualization of GENESIS ONLINE data based on pandas

Introduction:
In addition to Volkswagen, BMW, Siemens and other Fortune 500 companies, Germany also has many small and medium-sized enterprises with annual sales of no more than 5 billion US dollars, but they are leaders in certain subdivided manufacturing and industrial fields. and hidden from public view. Here, the hidden champions refer to small and medium-sized enterprises that are in the absolute leading position in the segmented industry and whose annual sales do not exceed US$5 billion. This concept was created by the famous German SME management scientist Hermann Simon. Who would have thought that the hydraulic system of the C919 series of civil aviation airliners independently developed by our country also came from a small and medium-sized enterprise of the German invisible champion-Hanchen. In fact, Hanchen is also the largest supplier of hydraulic systems to Boeing. In fact, Hanchen is just a small company with no more than 200 employees.

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