Historical Volatility

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Yearly Average
2003			51.7	58.3	66.5	66.6	72.8	75.3	66.5	67.0	64.2	62.9	65.2
2004	60.9	61.3	55.9	55.6	55.6	56.0	53.8	51.9	43.9	43.8	40.5	29.9	50.8
2005	28.1	24.6	19.6	21.6	24.3	23.1	21.0	17.3	19.6	19.6	16.3	13.9	20.8
2006	14.2	12.1	11.7	14.4	15.6	12.9	12.7	12.9	12.0	13.4	16.0	16.9	13.7
2007	16.0	13.1	15.1	17.2	15.3	10.4	11.1	18.6	28.2	30.0	28.8	29.7	19.5
2008	39.7	55.0	70.8	64.9	52.2	30.8	20.5	16.2	32.4	69.3	72.7	131.8	54.7
2009	125.6	103.2	82.1	50.3	51.5	66.1	70.6	49.8	58.3	66.7			72.4
Mean	47.7	44.9	43.8	40.3	40.2	38.0	37.5	34.6	37.3	44.3	39.8	47.5
High	125.6	103.2	82.1	64.9	66.5	66.6	72.8	75.3	66.5	69.3	72.7	131.8
Low	14.2	12.1	11.7	14.4	15.3	10.4	11.1	12.9	12.0	13.4	16.0	13.9