"since_year","till_year","Total","Graphic"
"0","99","5",""
"1100","1199","2",""
"1200","1299","7",""
"1300","1399","4",""
"1400","1499","4",""
"1500","1599","9",""
"1600","1699","83","="
"1700","1799","759","========"
"1800","1899","9451","==============================================================================================="
"1900","1999","17681","================================================================================================================================================================================="
"2000","2099","880","========="