Number of Deaths in the U.S. by Drug Overdose zoos Deaths 17,053 17,513 14,314 13,382 17,774 14,546 11,155 18,659 16,646 Step 1 of 2: Find the twoperiod moving average for the year 2008. If necessary, round your answer to one decimal place. Step 2 of 2: Find the three-period moving average for the year 2008. If necessary, round your answer to one decimal place