"Start","End","Amount","Graphic"
"1730","1739","1",""
"1760","1769","2",""
"1770","1779","1",""
"1780","1789","3",""
"1790","1799","7",""
"1800","1809","4",""
"1810","1819","12",""
"1820","1829","10",""
"1830","1839","22",""
"1840","1849","19",""
"1850","1859","23",""
"1860","1869","40","X"
"1870","1879","42","X"
"1880","1889","48","X"
"1890","1899","100","XX"
"1900","1909","82","XX"
"1910","1919","114","XX"
"1920","1929","137","XXX"
"1930","1939","135","XXX"
"1940","1949","116","XX"
"1950","1959","133","XXX"
"1960","1969","137","XXX"
"1970","1979","99","XX"
"1980","1989","92","XX"
"1990","1999","77","XX"
"2000","2009","73","X"
"2010","2019","78","XX"
"2020","2029","15",""