"corn" <-
structure(list(New = c(110, 103, 95, 94, 87, 119, 102, 93, 87, 
98, 105, 117), Standard = c(102, 86, 88, 75, 89, 102, 105, 88, 
83, 89, 100, 110)), .Names = c("New", "Standard"), row.names = c("1", 
"2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12"), class = "data.frame")