| 
                
            
            	| Purchases summarize all trades executed during the indicated period including purchases associated with dollar rolls.* |  
                     
                      | Transactions 
                        ($ million) |   
                      | 
                           
                            | Maturity | Coupon | Settlement 
                                Month | FHLMC | FNMA | GNMA | GNMA2 |  
                            | 30 Year | 3.5 | July | 798 | 1,330 | 0 | 1,301 |  
                            |  | 3.5 | Aug | 420 | 541 | 0 | 353 |  
                            |  | 4 | July | 699 | 1,026 | 0 | 995 |  
                            |  | 4 | Aug | 333 | 489 | 0 | 249 |  
                            |  |  |  |  |  |  |  |  
                            | 15 Year | 3 | July | 130 | 183 | 0 | 0 |  
                            |  | 3.5 | July | 0 | 105 | 0 | 0 |  
                            |  |  |  |  |  |  |  |   
                            | Total |  |  | 2,380 | 3,674 | 0 | 2,898 |  
                          	| *Does not include trades associated with small value exercises. |  |  |