| 
                
            
            	| 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 | June | 350 | 1,557 | 0 | 965 |  
                            |  | 3.5 | July | 366 | 415 | 0 | 0 |  
                            |  | 4 | June | 1,400 | 3,273 | 0 | 1,074 |  
                            |  | 4 | July | 350 | 350 | 0 | 250 |  
                            |  |  |  |  |  |  |  |  
                            | 15 Year | 3 | July | 50 | 50 | 0 | 0 |  
                            |  | 3.5 | June | 204 | 408 | 0 | 0 |  
                            |  |  |  |  |  |  |  |   
                            | Total |  |  | 2,720 | 6,053 | 0 | 2,289 |  
                          	| *Does not include trades associated with small value exercises. |  |  |