"since_year","till_year","Number","Graph"
"180","189","1",""
"430","439","2",""
"530","539","1",""
"540","549","1",""
"550","559","1",""
"560","569","1",""
"570","579","2",""
"610","619","1",""
"620","629","1",""
"640","649","2",""
"650","659","2",""
"690","699","3",""
"710","719","4",""
"750","759","2",""
"760","769","1",""
"770","779","3",""
"780","789","4",""
"790","799","3",""
"800","809","4",""
"810","819","6",""
"820","829","3",""
"830","839","5",""
"840","849","8",""
"850","859","7",""
"860","869","3",""
"870","879","11","="
"880","889","6",""
"890","899","11","="
"900","909","9",""
"910","919","4",""
"920","929","8",""
"930","939","10","="
"940","949","10","="
"950","959","8",""
"960","969","11","="
"970","979","11","="
"980","989","13","="
"990","999","9",""
"1000","1009","9",""
"1010","1019","22","="
"1020","1029","10","="
"1030","1039","16","="
"1040","1049","10","="
"1050","1059","15","="
"1060","1069","19","="
"1070","1079","12","="
"1080","1089","8",""
"1090","1099","14","="
"1100","1109","7",""
"1110","1119","9",""
"1120","1129","9",""
"1130","1139","16","="
"1140","1149","9",""
"1150","1159","16","="
"1160","1169","6",""
"1170","1179","5",""
"1180","1189","7",""
"1190","1199","4",""
"1200","1209","15","="
"1210","1219","10","="
"1220","1229","5",""
"1230","1239","7",""
"1240","1249","10","="
"1250","1259","13","="
"1260","1269","19","="
"1270","1279","7",""
"1280","1289","17","="
"1290","1299","13","="
"1300","1309","13","="
"1310","1319","18","="
"1320","1329","13","="
"1330","1339","16","="
"1340","1349","23","="
"1350","1359","19","="
"1360","1369","10","="
"1370","1379","14","="
"1380","1389","7",""
"1390","1399","16","="
"1400","1409","19","="
"1410","1419","23","="
"1420","1429","8",""
"1430","1439","11","="
"1440","1449","7",""
"1450","1459","10","="
"1460","1469","8",""
"1470","1479","15","="
"1480","1489","18","="
"1490","1499","10","="
"1500","1509","8",""
"1510","1519","8",""
"1520","1529","6",""
"1530","1539","15","="
"1540","1549","5",""
"1550","1559","14","="
"1560","1569","17","="
"1570","1579","13","="
"1580","1589","10","="
"1590","1599","18","="
"1600","1609","13","="
"1610","1619","23","="
"1620","1629","30","=="
"1630","1639","23","="
"1640","1649","41","=="
"1650","1659","42","=="
"1660","1669","55","==="
"1670","1679","60","==="
"1680","1689","73","===="
"1690","1699","134","======="
"1700","1709","139","======="
"1710","1719","203","=========="
"1720","1729","212","==========="
"1730","1739","234","============"
"1740","1749","352","=================="
"1750","1759","482","========================"
"1760","1769","526","=========================="
"1770","1779","503","========================="
"1780","1789","514","=========================="
"1790","1799","550","============================"
"1800","1809","610","==============================="
"1810","1819","622","==============================="
"1820","1829","632","================================"
"1830","1839","650","================================="
"1840","1849","704","==================================="
"1850","1859","783","======================================="
"1860","1869","1069","====================================================="
"1870","1879","1013","==================================================="
"1880","1889","990","=================================================="
"1890","1899","1146","========================================================="
"1900","1909","1549","============================================================================="
"1910","1919","1816","==========================================================================================="
"1920","1929","1759","========================================================================================"
"1930","1939","2001","===================================================================================================="
"1940","1949","2120","=========================================================================================================="
"1950","1959","2677","======================================================================================================================================"
"1960","1969","3019","======================================================================================================================================================="
"1970","1979","3414","==========================================================================================================================================================================="
"1980","1989","3322","======================================================================================================================================================================"
"1990","1999","3075","=========================================================================================================================================================="
"2000","2009","2518","=============================================================================================================================="
"2010","2019","1310","=================================================================="
"2020","2029","47","=="