The mean annual salary is the average salary being paid for a job or position. Your annual salary is the amount that you will get paid in a year assuming you work the entire â¦ year at that salary.
An acre of farmland that a decade ago sold for an average of $2,275 now goes for $8,700, according to Mike Duffy, an economist at Iowa State University who watches land prices.
Note that farms in the over 4000 acre category have higher costs than farms in smaller size categories. The over 4000 acre farms have average costs of $525 per acre compared to smaller size categories (see Table 1).