"since_year","till_year","Totals","Graph"
"1640","1649","2",""
"1650","1659","1",""
"1670","1679","3",""
"1680","1689","5","="
"1690","1699","3",""
"1700","1709","6","="
"1710","1719","4",""
"1720","1729","11","="
"1730","1739","15","=="
"1740","1749","15","=="
"1750","1759","8","="
"1760","1769","20","=="
"1770","1779","7","="
"1780","1789","16","=="
"1790","1799","8","="
"1800","1809","9","="
"1810","1819","14","="
"1820","1829","19","=="
"1830","1839","14","="
"1840","1849","27","==="
"1850","1859","24","=="
"1860","1869","24","=="
"1870","1879","29","==="
"1880","1889","15","=="
"1890","1899","16","=="
"1900","1909","18","=="
"1910","1919","16","=="
"1920","1929","26","==="
"1930","1939","27","==="
"1940","1949","21","=="
"1950","1959","16","=="
"1960","1969","20","=="
"1970","1979","29","==="
"1980","1989","13","="
"1990","1999","13","="
"2000","2009","6","="
"2010","2019","2",""