"since_year","till_year","Totals","Graphic"
"1860","1869","2",""
"1870","1879","2",""
"1880","1889","3",""
"1890","1899","1",""
"1900","1909","4",""
"1910","1919","2",""
"1920","1929","3",""
"1930","1939","6","="
"1940","1949","2",""
"1950","1959","5","="
"1960","1969","3",""
"1970","1979","1",""
"1980","1989","5","="
"1990","1999","8","="
"2000","2009","10","="
"2020","2029","3",""