Sales estimates for CSGP

Yearly Sales Estimates for CSGP

Estimate Year	High Estimate	Low Estimate	Mean Estimate	Standard Deviation	Latest Estimate
2007	195.88	192.8	193.79	1.409	12/31/2007
2008	214	212.7	213.296	0.542	1/6/2009
2009	209.053	208	208.531	0.316	1/11/2010
2010	225.3	200.8	216.627	9.495	2/11/2010
2011	241.2	190	224.027	29.469	2/11/2010

Quarterly Sales Estimates for CSGP

Qtr Ending	High Estimate	Low Estimate	Mean Estimate	Standard Deviation	Latest Estimate
03-2007	44.57	44.2	44.356	0	3/23/2007
06-2007	47.1	47.03	47.066	0.035	5/31/2007
09-2007	49.71	49.6	49.67	0.06	10/1/2007
12-2007	51.31	50.8	51.136	0.291	12/31/2007
03-2008	52.9	51.9	52.366	0.503	4/1/2008
06-2008	54	53.7	53.8	0.141	7/7/2008
09-2008	55	54.3	54.7	0.294	10/1/2008
12-2008	54.04	53.2	53.635	0.446	1/6/2009
03-2009	52.4	50.8	51.544	0.654	4/21/2009
06-2009	51	49.75	50.21	0.511	7/14/2009
09-2009	52.06	51.5	51.773	0.226	10/5/2009
12-2009	54.029	53	53.47	0.381	1/11/2010
03-2010	54.7	51.9	53.449	1.083	2/11/2010
06-2010	55.8	50.8	53.771	1.875	2/11/2010
09-2010	56.9	49.6	54.339	2.834	2/11/2010
12-2010	58	48.5	55.087	3.937	2/11/2010
03-2011	47.4	47.4	47.4	0	2/11/2010