"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","42","=="
"1410","1419","38","=="
"1420","1429","28","="
"1430","1439","37","=="
"1440","1449","34","=="
"1450","1459","48","=="
"1460","1469","61","==="
"1470","1479","57","==="
"1480","1489","83","===="
"1490","1499","68","==="
"1500","1509","126","======"
"1510","1519","80","===="
"1520","1529","74","===="
"1530","1539","72","===="
"1540","1549","83","===="
"1550","1559","126","======"
"1560","1569","152","========"
"1570","1579","152","========"
"1580","1589","157","========"
"1590","1599","143","======="
"1600","1609","217","==========="
"1610","1619","220","==========="
"1620","1629","210","==========="
"1630","1639","244","============"
"1640","1649","241","============"
"1650","1659","395","===================="
"1660","1669","295","==============="
"1670","1679","444","======================"
"1680","1689","456","======================="
"1690","1699","538","==========================="
"1700","1709","570","============================="
"1710","1719","639","================================"
"1720","1729","733","====================================="
"1730","1739","776","======================================="
"1740","1749","806","========================================"
"1750","1759","974","================================================="
"1760","1769","1159","=========================================================="
"1770","1779","1083","======================================================"
"1780","1789","1218","============================================================="
"1790","1799","1200","============================================================"
"1800","1809","1279","================================================================"
"1810","1819","1346","==================================================================="
"1820","1829","1486","=========================================================================="
"1830","1839","1770","========================================================================================="
"1840","1849","1907","==============================================================================================="
"1850","1859","2035","======================================================================================================"
"1860","1869","2212","==============================================================================================================="
"1870","1879","2380","======================================================================================================================="
"1880","1889","2346","====================================================================================================================="
"1890","1899","2315","===================================================================================================================="
"1900","1909","2290","==================================================================================================================="
"1910","1919","2497","============================================================================================================================="
"1920","1929","2241","================================================================================================================"
"1930","1939","2262","================================================================================================================="
"1940","1949","2066","======================================================================================================="
"1950","1959","2026","====================================================================================================="
"1960","1969","2114","=========================================================================================================="
"1970","1979","1868","============================================================================================="
"1980","1989","1776","========================================================================================="
"1990","1999","1691","====================================================================================="
"2000","2009","1278","================================================================"
"2010","2019","544","==========================="
"2020","2029","47","=="