"CensusYear","CountryName","Average"
"1854","England","0"
"1857","England","0"
"1861","England","0"
"1871","England","0"
"1881","England","0"
"1891","England","0"
"1901","England","0"
"1911","England","53"
"1921","England","45"
"1933","England","44"
"1947","England","50"
"1954","England","44"
"1961","England","42"
"1971","England","39"
"1976","England","40"
"1981","England","42"
"1986","England","44"
"1991","England","46"
"1996","England","49"
"2001","England","51"
"2006","England","52"
"2011","England","53"
"2016","England","54"