| 
                
            
            	| 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 | Jun | 1,176 | 1,795 | 0 | 1,180 |  
                            |  | 3.5 | Jun | 1,085 | 1,550 | 0 | 718 |  
                            |  |  |  |  |  |  |  |  
                            | 15 Year | 2.5 | Jun | 410 | 461 | 0 | 0 |  
                            |  | 3 | Jun | 129 | 205 | 0 | 0 |  
                            |  |  |  |  |  |  |  |   
                            | Total |  |  | 2,800 | 4,011 | 0 | 1,898 |  
                          	| *Does not include trades associated with small value exercises. |  |  |