"Year_From","Year_Till","Number","Grafic"
"1300","1399","2",""
"1400","1499","7",""
"1500","1599","15",""
"1600","1699","47",""
"1700","1799","182","=="
"1800","1899","309","==="
"1900","1999","219","=="
"2000","2099","18",""