| 
                
            
            	| 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 | 1,118 | 1,737 | 0 | 1,456 |  
                            |  | 3.5 | Jun | 1,050 | 1,500 | 0 | 2,641 |  
                            |  | 4 | Jun | 0 | 0 | 0 | 210 |  
                            |  |  |  |  |  |  |  |  
                            | 15 Year | 2.5 | Jun | 295 | 422 | 0 | 0 |  
                            |  | 3 | Jun | 154 | 244 | 0 | 0 |  
                            |  |  |  |  |  |  |  |   
                            | Total |  |  | 2,617 | 3,903 | 0 | 4,307 |  
                          	| *Does not include trades associated with small value exercises. |  |  |