"Year_From","Year_Till","Number","Grafic"
"1400","1499","3",""
"1500","1599","211","=="
"1600","1699","1223","============"
"1700","1799","1549","==============="
"1800","1899","1251","============="
"1900","1999","716","======="
"2000","2099","27",""