"Year_From","Year_Till","Number","Grafic"
"700","799","2",""
"800","899","16",""
"900","999","16",""
"1000","1099","23",""
"1100","1199","33",""
"1200","1299","50","="
"1300","1399","229","=="
"1400","1499","586","======"
"1500","1599","1772","=================="
"1600","1699","5950","============================================================"
"1700","1799","17672","================================================================================================================================================================================="
"1800","1899","41773","=================================================================================================================================================================================================================================================================================================================================================================================================================================="
"1900","1999","20432","============================================================================================================================================================================================================"
"2000","2099","728","======="