part ii , item 8 schlumberger limited and subsidiaries shares of common stock ( stated in millions ) issued in treasury shares outstanding .                                                  | issued | in treasury  | shares outstanding
balance january 1 2007                           | 1334   | -156 ( 156 ) | 1178              
shares sold to optionees less shares exchanged   | 2013   | 14           | 14                
shares issued under employee stock purchase plan | 2013   | 2            | 2                 
stock repurchase program                         | 2013   | -16 ( 16 )   | -16 ( 16 )        
issued on conversions of debentures              | 2013   | 18           | 18                
balance december 31 2007                         | 1334   | -138 ( 138 ) | 1196              
shares sold to optionees less shares exchanged   | 2013   | 5            | 5                 
shares issued under employee stock purchase plan | 2013   | 2            | 2                 
stock repurchase program                         | 2013   | -21 ( 21 )   | -21 ( 21 )        
issued on conversions of debentures              | 2013   | 12           | 12                
balance december 31 2008                         | 1334   | -140 ( 140 ) | 1194              
shares sold to optionees less shares exchanged   | 2013   | 4            | 4                 
vesting of restricted stock                      | 2013   | 1            | 1                 
shares issued under employee stock purchase plan | 2013   | 4            | 4                 
stock repurchase program                         | 2013   | -8 ( 8 )     | -8 ( 8 )          
balance december 31 2009                         | 1334   | -139 ( 139 ) | 1195               see the notes to consolidated financial statements .
Question: what was the total, in millions, of repurchased shares in the years of 2007 and 2008, combined?

Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.
part ii , item 8 schlumberger limited and subsidiaries shares of common stock ( stated in millions ) issued in treasury shares outstanding .                                                  | issued | in treasury  | shares outstanding
balance january 1 2007                           | 1334   | -156 ( 156 ) | 1178              
shares sold to optionees less shares exchanged   | 2013   | 14           | 14                
shares issued under employee stock purchase plan | 2013   | 2            | 2                 
stock repurchase program                         | 2013   | -16 ( 16 )   | -16 ( 16 )        
issued on conversions of debentures              | 2013   | 18           | 18                
balance december 31 2007                         | 1334   | -138 ( 138 ) | 1196              
shares sold to optionees less shares exchanged   | 2013   | 5            | 5                 
shares issued under employee stock purchase plan | 2013   | 2            | 2                 
stock repurchase program                         | 2013   | -21 ( 21 )   | -21 ( 21 )        
issued on conversions of debentures              | 2013   | 12           | 12                
balance december 31 2008                         | 1334   | -140 ( 140 ) | 1194              
shares sold to optionees less shares exchanged   | 2013   | 4            | 4                 
vesting of restricted stock                      | 2013   | 1            | 1                 
shares issued under employee stock purchase plan | 2013   | 4            | 4                 
stock repurchase program                         | 2013   | -8 ( 8 )     | -8 ( 8 )          
balance december 31 2009                         | 1334   | -139 ( 139 ) | 1195               see the notes to consolidated financial statements .
Question: what was the total, in millions, of repurchased shares in the years of 2007 and 2008, combined?
