GCKO -
Page of 1
  January 2008   December 2007   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 7,000 

NITE
Knight Capital Americas LLC5,000  1  71 -      5,000  1  71 
HILL
Hill, Thompson, Magid and Co.2,000  2  28 -      2,000  2  28 

GCKO -
Page of 1
  February 2008   January 2008   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 18,900 

HILL
Hill, Thompson, Magid and Co.14,000  1  74      2,000  2  28      16,000  1  61 
DOMS
Domestic Securities, Inc.4,900  2  25 -      4,900  3  18 

GCKO -
Page of 1
  March 2008   February 2008   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 22,400 

NITE
Knight Capital Americas LLC22,400  1  99 -      27,400  1  56 


GCKO -
Page of 1
  April 2008   March 2008   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 20,300 

NITE
Knight Capital Americas LLC20,300  1  99      22,400  1  99      47,700  1  69 


GCKO -
Page of 1
  May 2008   April 2008   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 35,800 

NITE
Knight Capital Americas LLC35,800  1  99      20,300  1  99      83,500  1  79 


GCKO -
Page of 1
  June 2008   May 2008   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 49,000 

NITE
Knight Capital Americas LLC49,000  1  99      35,800  1  99      132,500  1  86 


GCKO -
Page of 1
  July 2008   June 2008   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 16,700 

NITE
Knight Capital Americas LLC15,200  1  91      49,000  1  99      147,700  1  86 
HDSN
RODMAN & RENSHAW, LLC1,500  2  8 -      1,500  4  <1 


GCKO -
Page of 1
  August 2008   July 2008   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 15,790 

NITE
Knight Capital Americas LLC15,790  1  99      15,200  1  91      163,490  1  87 


GCKO -
Page of 1
  September 2008   August 2008   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 13,400 

NITE
Knight Capital Americas LLC13,400  1  99      15,790  1  99      176,890  1  88 


GCKO -
Page of 1
  October 2008   September 2008   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 28,400 

NITE
Knight Capital Americas LLC23,000  1  80      13,400  1  99      199,890  1  87 
HILL
Hill, Thompson, Magid and Co.5,400  2  19 -      21,400  2  9 


GCKO -
Page of 1
  November 2008   October 2008   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 61,150 

NITE
Knight Capital Americas LLC61,150  1  99      23,000  1  80      261,040  1  90 


GCKO -
Page of 1
  December 2008   November 2008   Year-to-Date  
  Volume  Rank  %   Volume  Rank  %   Volume  Rank  %  

Total Share Volume 80,100 

NITE
Knight Capital Americas LLC70,100  1  87      61,150  1  99      331,140  1  89 
BMAS
Burt Martin Arnold Securities10,000  2  12 -      10,000  3  2