The table below shows the closing monthly stock prices for IBM and Amazon. Calculate the simple three-month moving average for each month for both companies. (Input all amounts as positive values. Do not round intermediate calculations. Round your answers to 2 decimal places.)

	IBM				AMZN
January	$	172.64		$	607.61
February		175.29			618.80
March		186.43			579.71
April		202.46			546.10
May		194.29			518.62
June		206.79			500.38
July		229.17			605.19
August		209.08			538.71
September		218.63			513.74
October		214.11			597.69
November		194.54			595.04
December		174.50			651.40