Sales estimates for BLKB

Yearly Sales Estimates for BLKB

Estimate Year	High Estimate	Low Estimate	Mean Estimate	Standard Deviation	Latest Estimate
2007	256.7	254.5	255.192	0.903	12/31/2007
2008	308.6	302.1	305.8	3.342	1/29/2009
2009	311.7	308.91	310.262	1.125	10/29/2009
2010	338.35	321	330.25	6.986	10/29/2009
2011	390	390	390	0	2/9/2009

Quarterly Sales Estimates for BLKB

Qtr Ending	High Estimate	Low Estimate	Mean Estimate	Standard Deviation	Latest Estimate
03-2007	54.3	53.3	53.9	0	2/6/2007
06-2007	63	63	63	0	7/12/2007
09-2007	67.5	66.4	67.033	0.568	8/7/2007
12-2007	69.5	67.5	68.165	0.942	11/2/2007
03-2008	70	68	69.166	1.04	4/3/2008
06-2008	73.5	72.4	72.92	0.481	7/6/2008
09-2008	84.2	75.41	81.802	3.61	10/14/2008
12-2008	84	80.1	82.066	1.95	1/29/2009
03-2009	76.3	75	75.716	0.453	4/1/2009
06-2009	81.5	77.5	78.48	1.712	7/28/2009
09-2009	77.7	76.4	76.885	0.567	10/12/2009
12-2009	79	77.5	78.378	0.622	10/29/2009
03-2010	80.23	77	78.226	1.261	10/29/2009
06-2010	84.8	79.3	81.968	2.346	10/29/2009
09-2010	86.8	82	84.546	2.299	10/29/2009
12-2010	87.55	82.7	85.51	1.829	10/29/2009