"since_year","till_year","Number","Graph"
"200","209","1",""
"830","839","1",""
"860","869","1",""
"870","879","3",""
"890","899","7",""
"900","909","1",""
"910","919","1",""
"920","929","1",""
"930","939","3",""
"950","959","1",""
"960","969","2",""
"980","989","1",""
"990","999","1",""
"1000","1009","2",""
"1010","1019","2",""
"1020","1029","2",""
"1030","1039","1",""
"1040","1049","1",""
"1050","1059","2",""
"1060","1069","5",""
"1070","1079","3",""
"1080","1089","2",""
"1090","1099","1",""
"1100","1109","3",""
"1110","1119","1",""
"1120","1129","3",""
"1130","1139","8",""
"1140","1149","1",""
"1150","1159","1",""
"1170","1179","2",""
"1180","1189","3",""
"1190","1199","4",""
"1200","1209","3",""
"1210","1219","5",""
"1220","1229","3",""
"1230","1239","4",""
"1240","1249","6",""
"1250","1259","5",""
"1260","1269","5",""
"1270","1279","1",""
"1280","1289","9",""
"1290","1299","2",""
"1300","1309","7",""
"1310","1319","13","="
"1320","1329","4",""
"1330","1339","9",""
"1340","1349","18","="
"1350","1359","13","="
"1360","1369","13","="
"1370","1379","22","="
"1380","1389","18","="
"1390","1399","26","="
"1400","1409","43","=="
"1410","1419","38","=="
"1420","1429","28","="
"1430","1439","37","=="
"1440","1449","34","=="
"1450","1459","49","=="
"1460","1469","61","==="
"1470","1479","58","==="
"1480","1489","83","===="
"1490","1499","67","==="
"1500","1509","128","======"
"1510","1519","80","===="
"1520","1529","74","===="
"1530","1539","73","===="
"1540","1549","83","===="
"1550","1559","127","======"
"1560","1569","152","========"
"1570","1579","154","========"
"1580","1589","157","========"
"1590","1599","142","======="
"1600","1609","217","==========="
"1610","1619","220","==========="
"1620","1629","210","==========="
"1630","1639","242","============"
"1640","1649","243","============"
"1650","1659","399","===================="
"1660","1669","298","==============="
"1670","1679","446","======================"
"1680","1689","457","======================="
"1690","1699","543","==========================="
"1700","1709","574","============================="
"1710","1719","645","================================"
"1720","1729","742","====================================="
"1730","1739","781","======================================="
"1740","1749","819","========================================="
"1750","1759","983","================================================="
"1760","1769","1174","==========================================================="
"1770","1779","1102","======================================================="
"1780","1789","1231","=============================================================="
"1790","1799","1215","============================================================="
"1800","1809","1295","================================================================="
"1810","1819","1377","====================================================================="
"1820","1829","1514","============================================================================"
"1830","1839","1808","=========================================================================================="
"1840","1849","1963","=================================================================================================="
"1850","1859","2095","========================================================================================================="
"1860","1869","2278","=================================================================================================================="
"1870","1879","2454","==========================================================================================================================="
"1880","1889","2429","========================================================================================================================="
"1890","1899","2395","========================================================================================================================"
"1900","1909","2389","======================================================================================================================="
"1910","1919","2582","================================================================================================================================="
"1920","1929","2354","======================================================================================================================"
"1930","1939","2369","======================================================================================================================"
"1940","1949","2153","============================================================================================================"
"1950","1959","2117","=========================================================================================================="
"1960","1969","2239","================================================================================================================"
"1970","1979","1937","================================================================================================="
"1980","1989","1824","==========================================================================================="
"1990","1999","1757","========================================================================================"
"2000","2009","1339","==================================================================="
"2010","2019","599","=============================="
"2020","2029","80","===="