"since_year","till_year","Number","Graph"
"1290","1299","1",""
"1400","1409","1",""
"1410","1419","1",""
"1420","1429","2",""
"1430","1439","1",""
"1440","1449","2",""
"1450","1459","5",""
"1460","1469","3",""
"1470","1479","6",""
"1480","1489","4",""
"1490","1499","5",""
"1500","1509","6",""
"1510","1519","4",""
"1520","1529","4",""
"1530","1539","7",""
"1540","1549","17","="
"1550","1559","12","="
"1560","1569","14","="
"1570","1579","4",""
"1580","1589","9",""
"1590","1599","9",""
"1600","1609","7",""
"1610","1619","13","="
"1620","1629","17","="
"1630","1639","8",""
"1640","1649","2",""
"1650","1659","12","="
"1660","1669","14","="
"1670","1679","9",""
"1680","1689","30","=="
"1690","1699","20","="
"1700","1709","32","=="
"1710","1719","19","="
"1720","1729","52","==="
"1730","1739","36","=="
"1740","1749","52","==="
"1750","1759","44","=="
"1760","1769","56","==="
"1770","1779","68","==="
"1780","1789","67","==="
"1790","1799","73","===="
"1800","1809","66","==="
"1810","1819","84","===="
"1820","1829","62","==="
"1830","1839","102","====="
"1840","1849","101","====="
"1850","1859","103","====="
"1860","1869","127","======"
"1870","1879","114","======"
"1880","1889","135","======="
"1890","1899","153","========"
"1900","1909","143","======="
"1910","1919","143","======="
"1920","1929","131","======="
"1930","1939","168","========"
"1940","1949","178","========="
"1950","1959","153","========"
"1960","1969","161","========"
"1970","1979","157","========"
"1980","1989","126","======"
"1990","1999","122","======"
"2000","2009","100","====="
"2010","2019","99","====="
"2020","2029","26","="