Sales estimates for STRA

Yearly Sales Estimates for STRA

Estimate Year	High Estimate	Low Estimate	Mean Estimate	Standard Deviation	Latest Estimate
2007	319.33	316.88	317.571	0.779	1/21/2008
2008	396.48	394.54	395.712	0.685	2/6/2009
2009	514.774	497	510.119	4.136	11/2/2009
2010	646	605	631.557	13.044	11/2/2009
2011	763.48	735.821	746	15.206	10/30/2009

Quarterly Sales Estimates for STRA

Qtr Ending	High Estimate	Low Estimate	Mean Estimate	Standard Deviation	Latest Estimate
03-2007	81.6	79.69	80.56	0	3/19/2007
06-2007	78.8	78	78.264	0.277	7/24/2007
09-2007	69.78	67.8	69.192	0.711	10/22/2007
12-2007	90.45	88	88.766	0.886	1/21/2008
03-2008	97.01	95.82	96.357	0.548	4/22/2008
06-2008	97.78	94	95.911	1.6	6/17/2008
09-2008	88	84.61	86.943	1.248	10/10/2008
12-2008	114.49	112.54	113.647	0.7	2/6/2009
03-2009	124	122	122.973	0.638	3/25/2009
06-2009	125.35	123	124.502	0.852	7/29/2009
09-2009	113.96	108	112.807	1.742	10/20/2009
12-2009	150.14	142	146.226	1.932	11/2/2009
03-2010	158.087	153.1	156.041	1.604	11/2/2009
06-2010	159.8	153.6	157.296	1.82	11/2/2009
09-2010	143.9	138.4	141.676	1.999	11/2/2009
12-2010	185.997	175.6	181.401	3.096	11/2/2009