Sales estimates for BKH

Yearly Sales Estimates for BKH

Estimate Year	High Estimate	Low Estimate	Mean Estimate	Standard Deviation	Latest Estimate
2007	703.9	703.9	703.9	0	2/1/2008
2008	962.53	962.53	962.53	0	1/26/2009
2009	1271.3	1213	1242.15	41.224	11/23/2009
2010	1398.5	1060.2	1229.35	239.214	11/23/2009
2011	1320	1320	1320	0	11/2/2009

Quarterly Sales Estimates for BKH

Qtr Ending	High Estimate	Low Estimate	Mean Estimate	Standard Deviation	Latest Estimate
03-2007	182.45	182.45	182.45	0	2/16/2007
06-2007	161.32	161.32	161.32	0	5/22/2007
09-2007	169.64	169.64	169.64	0	8/10/2007
12-2007	191.1	191.1	191.1	0	2/1/2008
03-2008	201.87	201.87	201.87	0	4/8/2008
06-2008	142.92	142.92	142.92	0	7/22/2008
09-2008	308.09	308.09	308.09	0	9/22/2008
12-2008	364.52	364.52	364.52	0	1/26/2009
03-2009	416.03	373.9	394.965	29.79	3/17/2009
06-2009	265.5	154.9	210.2	78.206	6/4/2009
09-2009	258	172.4	215.2	60.528	9/2/2009
12-2009	350.2	291.9	321.05	41.224	11/23/2009