During the last several years, demand for beer has been steady and predictable. Furthermore, there has been a direct relationship between barrels of beer processed and rated capacity expressed in hours per week. This relationship has allowed the executives of Best to forecast rated capacity with a fair degree of accuracy. The production manager provided the following historical data for rated capacity.

MONTH RATED CAPACITY(HR. /WK.) 2013 Jan. 500 Feb. 510 Mar. 514 Apr. 520 May 524 June 529

With the above data, it is possible to project rated capacity into the future. Use the three period moving-average techniques to forecast for July 2013