Section 261(iv) in Rajasthan Land Revenue (Land Records) Rules, 1957
(iv)Col. (iii) to (vi). - In these columns the figures for the previous year and for the five years average should relate to the corresponding forecasts. In order to have a correct picture of the crops conditions, it is necessary to compare the current year's figures with the previous year's and with the normal, the normal being the average of the previous five years ending with the previous years. Tehsils that have been set up recently and do not possess the necessary date for the previous five years may give averages for the years for which data are available with them, the fact being stated in a foot note.