"since_year","till_year","Number","Graph"
"1610","1619","3",""
"1640","1649","3",""
"1650","1659","7",""
"1660","1669","8",""
"1670","1679","10","="
"1680","1689","25","="
"1690","1699","13","="
"1700","1709","27","="
"1710","1719","15","="
"1720","1729","24","="
"1730","1739","12","="
"1740","1749","20","="
"1750","1759","12","="
"1760","1769","12","="
"1770","1779","10","="
"1780","1789","3",""
"1790","1799","7",""
"1800","1809","6",""
"1810","1819","7",""
"1820","1829","7",""
"1830","1839","6",""
"1840","1849","7",""
"1850","1859","4",""
"1860","1869","3",""
"1870","1879","6",""
"1880","1889","7",""
"1890","1899","14","="
"1900","1909","16","="
"1910","1919","13","="
"1920","1929","15","="
"1930","1939","5",""
"1940","1949","8",""
"1950","1959","10","="
"1960","1969","5",""
"1970","1979","10","="
"1980","1989","9",""
"1990","1999","5",""
"2000","2009","8",""
"2010","2019","6",""
"2020","2029","2",""