"since_year","till_year","Total","Graphic"
"1200","1299","1",""
"1300","1399","2",""
"1400","1499","3",""
"1500","1599","15",""
"1600","1699","96","="
"1700","1799","373","===="
"1800","1899","1470","==============="
"1900","1999","1579","================"
"2000","2099","46",""