"CensusYear","CountryName","Average"
"1871","Greece","0"
"1881","Greece","0"
"1891","Greece","0"
"1901","Greece","0"
"1911","Greece","34"
"1921","Greece","34"
"1933","Greece","36"
"1947","Greece","42"
"1954","Greece","33"
"1961","Greece","30"
"1971","Greece","31"
"1976","Greece","35"
"1981","Greece","40"
"1986","Greece","44"
"1991","Greece","48"
"1996","Greece","52"
"2001","Greece","56"
"2006","Greece","60"
"2011","Greece","65"
"2016","Greece","67"