Where are fivestar data stored? On a D7 site using fivestar , I'd like to extract data from the module but there is not such table or node in the database and looking at the source code, I could not figure out in which table/fields the fivestart data are related/stored. 

So appreciate your help about this.
Fivestar module defines a field.
Add a field to a content type. If fx you add a field named "test" of type fivestar reting to a content type then you can find the table with the name "field_data_field_test".